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Despite limited success as a junior, Sinner began playing in professional men's events aged 16, and became one of the few players to win multiple ATP Challenger Tour titles at age 17. In 2019, he won the Next Generation ATP Finals and the ATP Newcomer of the Year award, and two years later became the first player born in the 2000s to enter the top 10 in rankings. Sinner won his first Masters 1000 title at the 2023 Canadian Open and finished that season by reaching the final of the ATP Finals and leading Italy to the Davis Cup crown.
At the 2024 Australian Open, Sinner defeated world No. 1 Novak Djokovic and then Daniil Medvedev in a five-set final to win his first major title. He followed by winning three Masters 1000 events, the US Open, and the ATP Finals to finish the year as the world No. 1, the first Italian to reach the top ranking. In 2025, Sinner defended his title at the Australian Open and, following a three-month suspension for the accidental administration of clostebol, finished runner-up at the French Open, losing an epic final to his career rivalCarlos Alcaraz. He rebounded by winning Wimbledon over Alcaraz in the final, becoming the first Italian to win the title.
Jannik Sinner was born 16 August 2001 to Hanspeter and Siglinde Sinner in Innichen, in the Northern Italian province of South Tyrol. His mother tongue is German.[4][5] He grew up in the town of Sexten in the Dolomites, the family hometown, where his father worked as a chef and his mother as a waitress at a ski lodge.[6] He has an older adopted brother, Mark, who was born in Russia in 1998.[7][8] Sinner began skiing at age three and competed in his first ski races at the age of eight. He began playing tennis at age seven.[9] He was one of Italy's top junior skiers from seven to 12 years old, winning a national championship in giant slalom at age seven in 2008 and becoming a national runner-up at age 11 in 2012.[10][11][12][13]
While training in skiing Sinner gave up tennis for a year at age seven before his father pushed him to return to the sport.[14] When he resumed playing, Heribert Mayr was his first regular coach.[15] Sinner's grandfather drove him to Tennis San Giorgio early in the morning, where Sinner had to take individual lessons with Mayr as no child his age there was at his level and he was much faster than older children.[9] Nonetheless, tennis was still only his third priority, behind skiing and football.[16][17] In the mornings he competed in ski races and in the afternoons he played football matches for AFC Sexten (Youth).[9]
At age 13, Sinner gave up skiing and football in favour of tennis due to his physique; he was tall, thin, and weighed only 35 kilograms.[9] He also preferred competing in an individual sport directly against an opponent and having more control over the outcome.[17][18] He moved on his own to Bordighera on the Italian Riviera, Liguria, to train at the Piatti Tennis Center under Riccardo Piatti and Massimo Sartori, a decision his parents supported.[8][12][14] There, Sinner lived with the family of Luka Cvjetković, one of his coaches, and later moved out to share an apartment with two boys.[9][19] Before he began training in tennis full-time with Piatti, he had been playing only twice a week.[16] He graduated[when?] from the Walther Institute, a private economics school in Bolzano.[9]
Sinner began playing tennis on the ITF Junior Circuit. In spite of having limited success as a junior, he moved mainly to the professional tour following the end of 2017. He never played the main draw of any high-level Grade 1 events in singles, and the only higher-level Grade A tournament he entered was the Trofeo Bonfiglio.
Sinner followed up an opening round loss at Italy's Grade A tournament in 2017 with a quarterfinal in 2018. That was the only junior event he played in 2018. He never played any of the junior Grand Slam tournaments. Because he entered so few high-level tournaments, Sinner's career-high junior ranking was a relatively low No. 133.[20]
Sinner won his first ATP Challenger title in Bergamo in February 2019 at the age of 17 years and 6 months, despite entering the tournament with no match wins at the Challenger level. He became the first person born in 2001 to reach a Challenger final, and the youngest Italian to win a Challenger title in history. With the title, he rose over 200 spots in ATP rankings up to No. 324.[24][25]
During the second half of the season Sinner played more often on the ATP Tour than the Challenger Tour.[28] His first ATP Masters victory came at the Italian Open against Steve Johnson, and he broke into the top 200 with his next ATP win at the Croatia Open Umag in July.[23] The next month, he won a second ATP Challenger title in Lexington to become one of just eleven 17-year-olds to have won multiple Challenger titles.[29] After losing in qualifying at Wimbledon, Sinner qualified for his first Grand Slam tournament main draw at the US Open.[30] He lost his debut match to No. 24 Stan Wawrinka.[28]
Sinner had a strong finish to the season. As a wild card at the European Open, he became the youngest player in five years to reach an ATP semifinal.[31] Along the way, he knocked off top seed and world No. 13 Gaël Monfils for his first career top 50 victory.[32] This performance helped him break into the top 100 for the first time one week later.[23] At the end of the season, Sinner qualified for the 2019 Next Gen ATP Finals as the Italian wild card and the lowest seed.[33] He won in his round robin group with victories over Frances Tiafoe and Mikael Ymer, losing only to Ugo Humbert.
After defeating Miomir Kecmanović in the semifinals, Sinner upset top seed and world No. 18 Alex de Minaur in straight sets to win the title.[34] He played one last event in Italy the following week, winning a third Challenger title in Ortisei. Sinner finished the year at world No. 78, becoming the youngest player in the year-end top 80 since Rafael Nadal in 2003.[26] He was also named ATP Newcomer of the Year.[35] and received the Gazzetta Sport Award for Best Performance of the Year for his win over de Minaur in the Next Gen ATP Finals.[36]
Following the ATP Tour shutdown due to the COVID-19 pandemic, Sinner had a successful restart to the season. Although he lost his opening round match to Karen Khachanov at the US Open, he fared better in Europe. He reached the third round at the Rome Masters, highlighted by a victory over world No. 6 Stefanos Tsitsipas.[38] He then progressed to become the youngest quarterfinalist at the French Open since Novak Djokovic in 2006, and the first to make the quarterfinals on debut since Rafael Nadal in 2005. During the tournament, he defeated Goffin again as well as US Open runner-up and world No. 7 Alexander Zverev before losing to Nadal.[39][40]
After a semifinal at the Cologne Championship, where he lost to Zverev,[41] Sinner closed out the season by winning the Sofia Open for his first ATP title. During the event, he defeated Next Gen rival Alex de Minaur and then Vasek Pospisil in the final.[42] He became the youngest Italian tour-level champion in the Open Era and the youngest player overall to win an ATP title since Kei Nishikori in 2008.[43][44]
Sinner carried over his success from late 2020 into the start of the 2021 season. He won his second career ATP title at the Great Ocean Road Open,[45] and notably defeated No. 20 Karen Khachanov in the semifinals after saving a match point.[46] He became the youngest to win back-to-back ATP titles since Rafael Nadal in 2005.[45] His ten-match winning streak came to an end in the first round of the 2021 Australian Open, where he lost a tight five-set match to world No. 12 Denis Shapovalov.[47]
Then at the French Open, his campaign was stopped short for the second year running by Rafael Nadal, who this time defeated Sinner in straight sets in the fourth round.[51] In his main draw debut at Wimbledon, he lost in the first round to Márton Fucsovics.
At the 2021 Citi Open in Washington, D.C., Sinner went into the tournament as the fifth seed and made it to the finals and beat several young players along the way such as Emil Ruusuvuori, Sebastian Korda, and Jenson Brooksby.[54] He beat Mackenzie McDonald in the final to win his third title and first ATP 500 title. Sinner was the first Italian finalist and champion in Washington's tournament history as well as the youngest ATP 500 and first teen champion since the category was created in 2009.[55] As a result, he entered the top 15 in the ATP rankings on 9 August 2021.
At the US Open, he defeated Gaël Monfils in the third round to reach the second week of a Major for the second time in the season. Sinner's tournament ended when he lost to Alexander Zverev in the 4th round in straight sets.
Sinner successfully defended his title at the Sofia Open as the top seed, defeating again second seed Gaël Monfils in the final.[56] Sinner made his sixth career final at the 2021 European Open without dropping a set en route. He defeated Lorenzo Musetti, Arthur Rinderknech and Lloyd Harris to reach the final.[57] He bested Diego Schwartzman in the final to take his fifth career title. He became the youngest man to win five ATP titles since 19-year-old Novak Djokovic.[58]
On 1 November, Sinner became the first male player born in the 2000s to break into the top-10 after a semifinal appearance at the Vienna Open. At the Rolex Paris Masters, Sinner received a bye in the first round but was defeated by Carlos Alcaraz. Because of this, Sinner was unable to directly qualify for the season-ending Nitto ATP Finals.[59]
At the ATP Finals in Turin, Sinner was present as the first alternate. Sinner entered the tournament after countryman Matteo Berrettini was forced to withdraw with an abdominal injury after his first match with Alexander Zverev.[60] He defeated Hubert Hurkacz and became the youngest player to win an ATP Finals match on debut since Lleyton Hewitt in Lisbon in 2000 and the first alternate to win a match since Janko Tipsarević in London in 2011.[61][62] Sinner played Daniil Medvedev next in the round robin stage, holding a match point before being defeated in 3 sets. As a result, he re-entered the top-10 in the rankings and finished the year at world No. 10 on 22 November 2021.
At the Australian Open Sinner reached the quarterfinals of a major for the second time in his career, becoming the fifth Italian man to reach that stage in Melbourne.[64] He then lost to fourth seed Stefanos Tsitsipas in straight sets.
At the French Open, he retired in the fourth round against Andrey Rublev after sustaining a knee injury.[72]
At the Eastbourne International, Sinner suffered his first opening round loss of the year after losing to Tommy Paul in three sets.[73] At the 2022 Wimbledon Championships, he recorded his first win at this Major over Stan Wawrinka.[74] He then beat Mikael Ymer, John Isner, and Carlos Alcaraz to reach his third career major quarterfinal. He lost to top seed and eventual champion Novak Djokovic in five sets in the quarterfinals, after being two sets to love up.[75]
At the Croatia Open, Sinner defeated Carlos Alcaraz in the final to win his first clay court title.[76] In Montreal, he lost to eventual champion Pablo Carreño Busta in the third round.[77] Sinner's loss guaranteed a maiden Masters 1000 finalist from his half of the draw. At the Cincinnati Masters, he lost in the third round to Félix Auger-Aliassime after being up a set, a break, and 2 match points.[78]
Seeded 11th at the US Open, he reached the fourth round after defeating Brandon Nakashima in four sets.[79] Next, he defeated Ilya Ivashka in a five set match lasting close to four hours to reach the quarterfinals for the first time at this Major.[80] He became the youngest player to reach the quarterfinals of all four major tournaments since Novak Djokovic in 2007–08.[81] He lost to Carlos Alcaraz in a five-set match that lasted 5 hours and 15 minutes; the match set the record as the latest finish (at 2:50 am EST) and second longest match in US Open history. Sinner held a match point while serving up 5–4 in the 4th set, but ended up losing the set 5–7.[82][83]
In September, during the Davis Cup Finals after Matteo Berrettini won his singles match against Argentina, Sinner won the second match (best of three matches) and thus secured a place for Italy's Davis Cup team at the Final 8 of the Davis Cup Finals.[84] Following close to a month break due to an injury sustained in the semifinal at the 2022 Sofia Open[85] he returned to the 2022 Erste Bank Open in Vienna and reached also the quarterfinals losing to top seed and eventual champion Daniil Medvedev.[86] In his next tournament, the 2022 Rolex Paris Masters, he lost in the first round to qualifier Marc-Andrea Huesler.[87]
Sinner finished the year ranked 15th in the world, one space ahead of countryman Matteo Berrettini.
Sinner then won his seventh title at the Open Sud de France in Montpellier, becoming the first player to win a tour-level title in the season without having dropped a single set and the first since countryman Lorenzo Musetti won the title in Naples in October 2022.[90]
At the ABN AMRO Open he defeated top seed and world No. 3 Stefanos Tsitsipas taking his revenge for the Australian Open loss, for his biggest win ever.[91] Next in the quarterfinals, he defeated Stan Wawrinka in straight sets.[92] In the semifinals, he defeated home favorite Tallon Griekspoor to reach the final,[93] which he lost to sixth seed Daniil Medvedev.
In March, he played in Indian Wells where he defeated Richard Gasquet, Adrian Mannarino, and Stan Wawrinka all in straight sets to advance to the quarterfinals where he faced defending champion Taylor Fritz and won in a three-set match. In the following round in the semifinals, he lost in straight sets to career rival and top seed Carlos Alcaraz who returned to world No. 1 following the tournament.[94] In Miami, he reached the quarterfinals of this tournament for a third straight year after defeating Grigor Dimitrov and Andrey Rublev, thus returning to the top 10 in the rankings at world No. 9.[95] He then defeated Emil Ruusuvuori to reach back-to-back semifinals,[96] where he again faced the defending champion Carlos Alcaraz, this time winning to reach his second Miami and career Masters final in three years,[97] putting an end to Alcaraz's hopes for a Sunshine Double and preventing him from returning to the No. 1 spot.[98] He lost to fourth seed Daniil Medvedev in straight sets in the final, extending his losing streak versus the Russian to 0–6.[99]
In Monte Carlo he reached a third consecutive Masters semifinal defeating compatriot and 16th seed Lorenzo Musetti.[100] At the French Open, Sinner was upset in the second round by Daniel Altmaier in a five-set match despite serving for the match in the fourth set and having two match points.[101] At five hours and 26 minutes, it was the longest match of Sinner's career up until this point and the fifth-longest in the tournament history[102] as well as the second longest of the season after Andy Murray against Thanasi Kokkinakis at the Australian Open.[103]
At the China Open, he defeated world No. 2 Carlos Alcaraz, his fourth tour-level win against the Spaniard, to reach his fifth final of the season, where he defeated world No. 3 Daniil Medvedev for the first time at the seventh time of asking.[107] As a result, he climbed to a career-high world No. 4 to become the second Italian in the history of the ATP rankings to reach the Top 5, equaling Adriano Panatta.[108] At the Shanghai Masters he lost in the round of 16 to Ben Shelton.[109] He recorded his 55th win over Andrey Rublev to reach his fourth ATP 500 career final in Vienna and became the first Italian man with the most wins for a season in the Open Era, surpassing Corrado Barazzutti's 54 mark in 1978.[110] He won the final defeating again top seed Daniil Medvedev to win his tenth ATP title, defeating him in two consecutive finals.[111]
On his debut at the ATP Finals, Sinner won all of his round-robin matches, including beating the world No. 1 Novak Djokovic in a third set tiebreaker to clinch his fifth top-5 win in a row.[112][113] He ultimately lost in a rematch against Djokovic in the final.[114] He then made his debut in the Davis Cup, where he defeated Tallon Griekspoor in singles to help Italy win its quarterfinal tie against the Netherlands.[115] In the semifinal, Sinner faced Djokovic for the third time in 11 days, and become the first player to defeat him in a Davis Cup singles match since Juan Martín del Potro in 2011.[116] Sinner saved three consecutive match points in the third set to become only the fourth player to beat Djokovic from match points down and the first one to do so with three in a row.[117][118] He also became only the third player ever to defeat Djokovic twice in 12 days, alongside Rafael Nadal and Andy Murray.[119] Sinner then teamed up with Lorenzo Sonego for the decisive doubles match, defeating Djokovic and Miomir Kecmanovic to clinch the tie and help Italy reach the Davis Cup final for the first time since 1998.[120] In the final, he defeated Australian Alex de Minaur to clinch the title for Italy for the second time after 47 years since 1976.[121] Sinner was awarded the Most Improved Player of the Year award and voted the Fans' Favorite at the 2023 ATP Awards,[122][123] while his coaches, Darren Cahill and Simone Vagnozzi, won the Coach of the Year award.[124] Sinner also received the award for Best Tennis Player at the Supertennis Awards.[125]
Sinner started his year at the Australian Open, where he beat Botic van de Zandschulp, Jesper de Jong, Sebastián Báez, Karen Khachanov, and Andrey Rublev (all in straight sets) to reach his second major semifinal and first at the Australian Open. In the semifinals, he upset world No. 1 and defending champion Novak Djokovic to advance to his first major final, becoming the first player not to face a break point against Djokovic in a completed major match.[126] Sinner's victory over Djokovic was the latter's first defeat at the Australian Open since 2018.[127] Sinner became the first Italian to reach the singles final at this major and the third man, after Adriano Panatta at the 1976 French Open and Matteo Berrettini at the 2021 Wimbledon Championships, to reach a major final in the Open Era.[128][129] In the final, he came from a two-set deficit to beat Daniil Medvedev to become the first Italian to win the Australian Open singles title, and the third man to win a Major (the second of which in the Open Era), and the first in 48 years.[130][131] His victory over Medvedev meant he became the second player to win the Australian Open after losing the first two sets in the final, after Rafael Nadal, who also beat Medvedev in 2022.
As the top seed at the Rotterdam Open, he recorded his 200th singles win in the quarterfinals, after Milos Raonic retired with a hip injury with Sinner leading by a set, becoming the first player born in the 2000s to accomplish this feat.[132][133][134] After defeating Tallon Griekspoor in the semifinal and Alex de Minaur in the final, Sinner rose to a new career high of No. 3 in the world, becoming the highest-ranked Italian player in history.[135] Sinner also became the first male player since Lleyton Hewitt, in 2001, to win his debut event as a major champion.[136] At the 2024 BNP Paribas Open, with a victory over 25th seed Jan-Lennard Struff to reach the fourth round, he recorded his 17th consecutive match win, the longest ATP level streak for an Italian player in the Open Era.[137] Sinner extended this to 19 consecutive wins (16–0 in 2024) by defeating Jiří Lehečka in the quarterfinal.[138] Prior to his semifinal defeat to Carlos Alcaraz, Sinner had won 36 of his previous 38 matches, dating back to the 2023 China Open.[citation needed]
In March, Sinner played in Indian Wells, defeating Thanasi Kokkinakis, Jan-Lennard Struff, Ben Shelton, and Jiří Lehečka (all in straight sets) to advance to the semifinals. In the semifinals, he lost to Carlos Alcaraz in three sets.[139] He also played in doubles with Lorenzo Sonego, defeating Karen Khachanov and Andrey Rublev in the first round in straight sets. In the second round, they lost to Marcel Granollers and Horacio Zeballos in straight sets. Later in the year, Sinner had his prize money and ranking points earned in Indian Wells forfeited by a tribunal in relation to a "no fault or negligence" anti-doping rule violation.[140] At the 2024 Miami Open, Sinner defeated Grigor Dimitrov in the final to win his second Master's 1000 title. As a result, he climbed to a career high (and Italian record) ranking of No. 2 in the world.[141][142] Sinner improved his 2024 ATP match record to 22–1.[143]
Sinner's clay season saw his second defeat of the season, to Stefanos Tsitsipas at the Monte-Carlo Masters, in April. In May, Sinner withdrew from the Madrid Masters, at the quarterfinal stage, due to a hip injury.[144] Three days later, he withdrew from the Italian Open due to the same injury.[145] After Novak Djokovic withdrew from the 2024 French Open on 4 June and following the conclusion of the tournament, Sinner became world No. 1 for the first time on 10 June.[146][147][148] He became the first Italian to hold the top position in the rankings.[149] Sinner lost in the semifinal to Alcaraz in five sets.[150]
On 20 August, an independent tribunal announced that Sinner had positive results for the banned substance clostebol in separate tests from March 2024.[159] The tribunal accepted Sinner's explanation that the clostebol had entered his body via massages administered by his physiotherapist, who had used a treatment which contained clostebol to treat an injury on his own hands. In August 2024, Sinner announced that he had parted ways with his fitness coach Umberto Ferrara and physio Giacomo Naldi.[160] The decision by the tribunal was to determine that Sinner bore "no fault or negligence" and no period of ineligibility would apply, but that he would forfeit prize money and ranking points earned at the Indian Wells tournament held in March.[161][162][163] The World Anti-Doping Agency appealed the decision, and in February 2025 the appeal reached a settlement under which the positive drug tests were determined to be due to inadvertent contamination and Sinner was suspended for three months.[164] The overall process was criticized by some active and former players.[165][166]
Sinner won his second major at the 2024 US Open, defeating 5th seed Daniil Medvedev in the quarterfinals, getting revenge for his previous Wimbledon loss, 25th seed Jack Draper in the semifinals, and 12th seed Taylor Fritz in the final.[167] He became the fourth man in more than 50 years to win his first two major titles in the same season. At the post-match ceremony, Sinner dedicated his win to his aunt.[168] At age 23, Sinner became the youngest man ever to win both hard-court majors in the same year.[citation needed]
After defeating Tomáš Machač in the 2024 Shanghai Masters semifinal, Sinner was confirmed as the year-end world No.1, becoming the first Italian player in history to achieve this ranking.[170][171] Sinner then went on to win the championship against Novak Djokovic in straight sets to win his third Masters 1000 title of the year, becoming the tournament's youngest-ever champion, and seventh overall title of 2024.[172] In November, Sinner won the season's ATP Finals in Turin, Italy, by defeating Fritz.[173] It was the first time since Ivan Lendl in 1986 in which a player won the trophy without losing any set, and the first time ever in which an Italian player won the title.[173][174]
He ended the 2024 season by defeating Netherlands' Tallon Griekspoor in the Davis Cup final, to win Italy's second consecutive title.[175] Sinner completed the entire season without a single straight-set defeat, becoming only the second man in the Open Era (Federer in 2005) to achieve this feat over a full year.[176]
2025: Australian and Wimbledon titles, 300th match win
For his 2024 positive test for Clostebol, the World Anti-Doping Agency (WADA) announced in February 2025 they entered a "case resolution agreement" with Sinner.[182][183] WADA accepted the cause and explanation of the positive test but stated "an athlete bears responsibility for the entourage's negligence".[184][185] A three-month suspension was handed down with Sinner being ineligible from tennis competition from 9 February to 4 May 2025.[186][187] Some players reacted with criticism of the process, including Novak Djokovic who, at a press conference at the 2025 Qatar Open, expressed the opinion that "the majority of the players feel like there is favouritism happening" citing the advantages that high ranked players have to rapid legal advice.[188] Sinner's lawyer Jamie Singer was vocal of the criticism, speaking out against what he said was ill-informed commentary about the process and the suspension itself.[189][190]
In May 2025, Sinner played his first tournament since his suspension at the Italian Open, where he reached the final. In doing so, he became the first Italian man to reach the final of the Italian Open since Adriano Panatta in 1978. Sinner was then defeated in the final by Carlos Alcaraz in straight sets.[191] At the French Open, he reached the final without losing a set en route, including against Novak Djokovic in the semifinals.[192] Sinner then played and lost an epic final, the longest in French Open history, to Alcaraz,[193][194] despite having been up two sets and holding three championship points.
After deciding to skip, like several other top players, the tournaments in Washington and Toronto due to the excessively congested calendar,[196] Sinner reached the final of the Cincinnati Masters 1000, where he faced again Carlos Alcaraz, but retired before the end of the first set due to illness problems, having contracted a virus in the previous days.[197]
In the following two weeks, he again reached the final of the US Open, playing his fifth consecutive Grand Slam final, but was defeated in four sets by Carlos Alcaraz.[198]
He then reached the final of the ATP 500 in Beijing for the third consecutive time, winning in straight sets against the American Learner Tien and conquering his third title of the season.[199]
He then began his European indoor tour by winning the Vienna Open, defeating Alexander Zverev in the final in a three-set comeback match. It was his fourth title of the season.[201]
Jannik Sinner and Carlos Alcaraz have faced each other 15 times since 2021, with Sinner trailing the rivalry 5–10.[202][203][204] Before 2025, the duo already played several high-profile matches, such as the 2024 French Open semifinal, which Alcaraz won in five sets, the 2022 US Open quarterfinal, which Sinner lost in five sets after holding a match point against the eventual champion,[205] and the 2023 Miami semifinal, won by Sinner. The pair met three times on the tour in 2024, with Sinner losing all three matches, notably their third meeting at the 2024 China Open.[169] The pair faced each other for the first time in 2025 at the Italian Open final with Sinner losing in straight sets. The two then played each other in major finals for the first time that year. At the French Open, Sinner lost in five sets despite winning the first two and holding three match points in the fourth set. At Wimbledon, Sinner won in four sets and dethroned two-time defending champion Alcaraz.[206]
Their rivalry has been described as "potentially era-defining".[207]
Jannik Sinner and Daniil Medvedev have met 15 times since 2020, with Sinner leading the rivalry 8–7.[208] The rivalry used to be one-sided in favor of Medvedev, with the Russian winning their first six matches. Sinner disrupted this streak in late 2023 by winning the next five, and eventually leveling the head-to-head. The two have played a number of high-profile matches, most notably the 2024 Australian Open final, which Sinner won in five sets after being down two-sets-to-love to claim his first major title. They met again in the 2024 Wimbledon quarterfinals, which Medvedev won in five sets, and the 2024 US Open quarterfinal, which Sinner won in four sets en route to the title.[209]
Sinner is an aggressive baseliner and is one of the hardest hitters on the ATP tour. Sinner's groundstroke strength is his two-handed-backhand, which he hits with more topspin than any other player on the tour, registering an average of 1858 revolutions per minute on the shot along with the fifth-best average speed of 111.2 km/h (69.1 mph).[215]
Sinner has been compared to Roger Federer for his calm on-court demeanour and all-court movement.[11][14][19] Federer himself has praised Sinner for the balance in his game, remarking, "What I like about him is that he almost has the same speed of shooting from the forehand and backhand."[13] Former world No. 1 junior and tennis coach Claudio Pistolesi has praised Sinner's good lateral movement, which he attributes in part to Sinner's background in skiing.[216] In this regard, Sinner has been compared to Novak Djokovic, who also credits a background in skiing for improving his tennis skills.[217]
Sinner plays with contact lenses and has stated that he cannot even see the ball without them.[218]
When Sinner began to prioritise tennis at age thirteen, he was coached by Riccardo Piatti, who had also been a part-time coach of Novak Djokovic and Milos Raonic.[19] At the time, he also began working with Andrea Volpini and Massimo Sartori, the latter of whom was a longtime coach of Andreas Seppi.[219] He continued to work with Piatti as his primary coach, and Volpini as his second coach. His team also consisted of physiotherapist Claudio Zimaglia and fitness coach Dalibor Širola.[17]
In February 2022, he ended his long collaboration with Piatti and his team and began to train with Simone Vagnozzi, ex-coach of Marco Cecchinato, new fitness coach Umberto Ferrara and physiotherapist.[18][220][221] In July 2022, coach Darren Cahill officially joined Sinner's team.[222] Instead of hiring a mental coach like other tennis players, Sinner uses Formula Medicine, an Italian mental training program developed for Formula 1 drivers.[223] In early 2023, he hired Giacomo Naldi as his personal physiotherapist.[224] In September 2024, he replaced Ferrara and Naldi with Novak Djokovic's former fitness trainer Marco Panichi and physiotherapist Ulises Badio. He also works with osteopath Andrea Cipolla.[225] On 23 July 2025, Sinner announced that he had reappointed his former fitness trainer Umberto Ferrara as his fitness coach with immediate effect.[226]
Sinner's father, a chef, cooks for the team at major tournaments.[227]
At age 17, Sinner signed sponsorship deals with Nike and Head in 2019 for tennis footwear, apparel, and equipment.[228] In 2020, when he was eighteen years old and not yet in the top 50 of the ATP rankings, Sinner signed a global ambassador contract with Rolex.[229] In October that year, when he was ranked no. 46, he signed a sponsorship contract with Alfa Romeo.[230] In 2021, he signed with Intesa Sanpaolo. In 2022, Sinner signed a new $150 million sponsorship contract with Nike spanning ten years[231] and became the face of Gucci[232] and Lavazza.[228] In 2023, Sinner signed a partnership with Formula 1 to help attract a young, diverse audience to the motorsport.[233] In 2024, L’Oréal’s skincare brand La-Roche Posay appointed Sinner as their global brand advocate to help raise awareness about sun protection.[234] Some of his other sponsors include FASTWEB,[235]De Cecco,[236]Panini Comics,[237]Technogym,[238]Enervit,[239]Parmigiano Reggiano,[240] and Pigna.[241] In August 2025, Sinner was named a global brand ambassador for the Explora Journeys.[242][243]
During the COVID-19 pandemic in 2020, Sinner launched his mental health initiative "What's Kept You Moving", a series in which he interviewed other young athletes about overcoming mental health challenges in sports.[244] In 2022, Sinner became the face of the "An Ace for Research" initiative for cancer research, committing to a donation for the purchase of modern lasers to diagnose cancers in men for every ace he scored in the ATP Finals, and later visited the research laboratories at The Candiolo Cancer Institute.[245][246][247]
He ventured into the investment world in 2022, diversifying his assets through four different companies that he registered in his place of residence, Monte Carlo. His real estate company owns properties at Corso Venezia in the historic centre of Milan.[248]
In 2022, Sinner released the comic bookPiccoli grandi campioni: Il manuale illustrato del tennis di Jannik Sinner through Panini Comics, an illustrated tennis manual for children in which an illustrated character of Sinner explains tennis and gives advice to beginners.[249]
In September 2024, Sinner was announced as the ambassador for the 2026 Winter Olympics volunteer program.[250]
In April 2025, Sinner announced the launch of the Jannik Sinner Foundation, a non-profit organization with the aim of empowering children around the globe through education and sports.[251][252][253][254]
Sinner's nickname is The Fox, which inspired the design of his logo.[18][255] A group of his Italian fans called the Carota Boys has garnered wide media attention for supporting him at major tournaments around the world dressed in carrot costumes.[256][257]
Sinner has been the subject of incessant media attention in Italy and has been credited with the surge in the popularity of tennis in the country.[258][259] It has been referred to as the Sinner Effect.[260][261][262] Following his Davis Cup and Australian Open titles, Sinner was honored by the Prime Minister of Italy, Giorgia Meloni, in Chigi Palace in Rome and met with the President of Italy, Sergio Mattarella. Italy's Minister of Foreign Affairs, Antonio Tajani, appointed Sinner as Ambassador of Sports Diplomacy.[263] Sinner subsequently declined an official invitation supported by the Prime Minister to appear at Italy's Sanremo Music Festival. The invitation caused controversy and public debate, with the president of The Italian Tennis Federation publicly advising Sinner against accepting it, stating that he must be protected from excessive media exposure and "should not be exploited".[264][265] In June 2024, he received honorary citizenship of Sexten where he grew up.[266] In Italy, Sinner has been labeled "the atypical Italian" by media outlets, a description he has agreed with.[267][268]
During the 2023 Wimbledon, Sinner entered Centre Court carrying a monogrammed beige leather Gucci duffel bag, breaking Wimbledon's all-white dress code, which made him the first tennis player to do so.[269] The accessory prompted worldwide media coverage and commentary, with CNN pondering whether Sinner's bag signals a shift in Wimbledon's strict traditions.[270]
In 2022, Sinner hosted Breaking Points, a video series created by GQ where he interviewed sports icons about mental health.[271] In 2023, he was featured in GQ’s short film series A Hero’s Journey, released also as a podcast.[272][273]
The Times has described Sinner as "the Gucci model with a shock of red hair and a surprisingly gangly frame".[274]
On 15 May 2024, a book titled Diventare Sinner, written by Enzo Anderloni, Michelangelo Dell'Edera and Alessandro Mastroluca in collaboration with the Italian Tennis Federation was published by Giunti Editore. It follows Sinner's evolution from a junior ski champion to a professional tennis player and major champion.[275][276]
Sinner's first language is German.[281] His Italian greatly improved after moving to Bordighera at the age of 13,[282][283] and he also speaks English.[284] Sinner resides in Monte Carlo in Monaco,[8] where he moved at the age of 18.[285]
One of his tennis idols is compatriot Andreas Seppi, who is also from South Tyrol. At age 17, Sinner stated that one of his goals was to "do better than [Seppi]".[25]
He was in a relationship with Italian model Maria Braccini from 2020 to 2024.[286] Beginning in June 2024, he was in a relationship with Russian tennis player Anna Kalinskaya.[287] In May 2025, Sinner confirmed they had broken up.[288]
Jannik Sinner co-shares with Novak Djokovic, Roger Federer, and Rod Laver the Open Era record for reaching the finals of all four Grand Slam tournaments in a single year (2025)[300]
 is an Italian professional tennis player currently ranked world No. 2 in singles by the ATP.[1][2] He has won four Grand Slam singles titles, including the Australian Open in 2024 and 2025, the US Open in 2024, and Wimbledon in 2025, making him the first Italian man to claim multiple majors.[3] Sinner holds 21 ATP Tour-level singles titles, the most by any Italian in the Open Era, and became the first from his country to reach world No. 1 in June 2024.[3] In February 2025, he accepted a three-month suspension from competition following a settlement with the World Anti-Doping Agency over two positive tests for the anabolic agent clostebol in 2024, which he attributed to unintentional contamination via a team member's spray; the ban was backdated and did not affect his prior results.[4][5][6]Born in Innichen (San Candido) in Italy's German-speaking South Tyrol region to parents Hanspeter and Siglinde, Sinner demonstrated early athletic promise as a champion skier before switching to tennis at age 13, training full-time in Bordighera.[3][1] His rapid ascent included breaking into the ATP top 100 in 2019 at age 17 and capturing his maiden title soon after, establishing him as a baseline powerhouse known for powerful groundstrokes and mental resilience.[3] By 2023, he led Italy to Davis Cup victory, and his 2024 season featured year-end No. 1 honors alongside Grand Slam triumphs, amassing over $49 million in career prize money.[3][7]Sinner's defining rivalries, particularly with Carlos Alcaraz, have elevated men's tennis, highlighted by his reaching all four Grand Slam finals in 2025—the youngest man to do so in the Open Era—losing the French Open and US Open deciders to Carlos Alcaraz.[8][9][10] His technical evolution, from a serve-volley aspirant to a hard-court dominator, underscores empirical training adaptations yielding a 306–86 career win-loss record as of late 2025.[7] Despite the doping resolution, which some critics viewed as lenient given the substance's performance-enhancing potential, Sinner maintained no intentional violation, resuming play without forfeited titles and continuing to defend his status among the sport's elite.[4][6]
Early life and development
Family background and upbringing
Jannik Sinner was born on August 16, 2001, in San Candido (Innichen), a small town in the South Tyrol province of northern Italy, to parents Johann and Siglinde Sinner.[11][12]Johann and Siglinde met while employed at the Talschlüsshütte ski lodge in the region, where Johann worked as a chef and Siglinde as a waitress in the local hospitality industry serving skiers and hikers.[13][14]Johann has over 40 years of experience as a chef, including preparing meals for Sinner during tournaments.[14]Sinner has an older brother, Marc.[12] The family resided in a modest household amid the alpine environment of South Tyrol, a region with a German-speaking majority where Sinner grew up fluent in German as his mother tongue alongside Italian.[15] His parents provided a supportive upbringing, granting him autonomy to explore interests such as sports from a young age, including introducing him to tennis at seven years old due to Johann's affinity for the game.[16][15] This environment fostered discipline and resilience, shaped by the hardworking ethos of his parents' roles in the tourism-dependent local economy.[17]
Early athletic pursuits and tennis introduction
Born on August 16, 2001, in San Candido, a small town in Italy's South Tyrol region near the Austrian border, Jannik Sinner grew up in an alpine environment where skiing was a dominant pursuit.[3] From the age of three, he engaged in skiing, developing skills in disciplines such as giant slalom, where he achieved national junior success, including runner-up finishes and championships between ages 8 and 12.[18][19] Sinner also participated in football (soccer) during his childhood, balancing multiple sports amid a local culture emphasizing winter athletics.[15]Sinner's introduction to tennis occurred at age seven, influenced by his father, Johann, an enthusiast of the sport, who encouraged him to play casually alongside family and friends.[3] Initially, he paused tennis training for a year during his early skiing focus but resumed at his father's urging, training sporadically—about twice weekly—while prioritizing skiing and football.[20] Despite early wins in skiing, Sinner recognized innate talent in tennis, appreciating its structure that allowed recovery from errors, unlike skiing where a single mistake could end a run.[21]By age 12, after excelling as a junior skier but weighing the physical demands and injury risks of alpine racing, Sinner decided to commit fully to tennis, viewing it as a more sustainable path for long-term competition.[18] This shift marked the transition from multi-sport involvement to specialized training, though he retained an affinity for skiing, crediting it for building his endurance, balance, and mental resilience transferable to court movement.[3]
Junior career highlights
Sinner maintained a limited presence on the ITF Junior Circuit, prioritizing early professional development over extensive junior competition. He attained a career-high ranking of No. 133 on 1 January 2018.[22] His overall junior singles record was 3–1, with all matches played on clay courts.[22] Sinner did not participate in any junior Grand Slam tournaments, nor did he secure any junior titles, reflecting a strategic focus on senior-level events to accelerate his progression.[15] This approach, guided by his training with Riccardo Piatti from age 14, emphasized long-term skill-building over junior accolades.[15]
Professional career
2018: Entry into ITF and Challenger circuits
Sinner turned professional in 2018 at the age of 16, beginning his career on the ITF Men's World Tennis Tour Futures circuit, where he competed primarily on clay courts in Europe.[23] He achieved his first professional main draw victory in January and quickly secured two singles titles in Futures events early in the season, demonstrating rapid adaptation to senior-level competition.[24] These successes included strong performances against experienced opponents, contributing to an initial rise in his ATP rankings from outside the top 1000. Additionally, he won an ITF doubles title during the year, further building his professional resume on lower-tier circuits.[25]To gain exposure at a higher level, Sinner received wild cards into several ATP Challenger Tour events, marking his entry into more competitive professional fields. In October, at the Ortisei Challenger on indoor hard courts, he won his first-round match against Luca Giacomini 7-6(?), 6-1 before falling in the second round to Constant Lestienne 6-7(5), 7-5, 7-5.[26] Later that month, at the Andria Challenger on carpet, he exited in the first round, losing to Illya Marchenko 4-6, 6-2, 6-4.[27] These appearances provided valuable experience against ranked professionals, though results were modest, with early exits common due to his youth and relative inexperience.By the end of 2018, Sinner had accumulated sufficient points from Futures and Challenger play to finish the year ranked No. 553 in the ATP singles rankings, a significant improvement reflecting his potential despite limited deep runs.[28] His season total included 7 ATP points from Challenger participation, underscoring a foundational year focused on building match toughness and rankings momentum.[29]
2019: ATP debut, NextGen Finals win, and top 100 entry
Sinner secured his first ATP Challenger Tour title at the Bergamo Challenger on February 24, 2019, defeating Lorenzo Rottoli in the final at the age of 17 years and six months, becoming the youngest Challenger champion since Felix Auger-Aliassime's win at the 2017 Copa Sevilla.[30] This breakthrough provided direct entry into higher-level ATP events and propelled his ranking upward from outside the top 500.[31]He made his ATP Tour main draw debut at the Hungarian Open in Budapest from April 22–28, 2019, after qualifying through the draw; in the first round, the 17-year-old defeated qualifier Mate Valkusz 7-5, 6-3 for his maiden ATP-level victory before falling to Aljaž Bedene in the second round.[32][33] Sinner's aggressive baseline play and serve, honed from junior successes, showed early promise against established professionals, though he struggled with consistency in longer formats.[32]Sinner added two more Challenger titles in 2019: the Lexington Challenger in August, where he beat Reilly Opelka in the final, and the Ortisei Challenger in October, defeating Matteo Viola.[31][34] These wins, combined with strong qualifying runs at ATP events like the US Open, elevated his ranking to No. 93 on October 28, 2019, marking his top 100 debut just eight months after his first Challenger crown.[35]As one of seven players under 21, Sinner received a wildcard into the Next Gen ATP Finals in Milan from November 5–9, 2019, on home soil; the under-21 event featured shortened sets (first to four games, no-ad scoring) to emphasize speed and recovery.[36] He advanced undefeated from round-robin play, defeating Ugo Humbert, Casper Ruud, and Alexander Zverev without dropping a set equivalent, then won the final against top seed Alex de Minaur 4-2, 4-1, 4-2 on November 9.[37][38] The triumph, his first ATP title of any format, boosted his year-end ranking to No. 78 and highlighted his potential as a future elite player through superior movement and flat groundstrokes.[3][35]
2020: Maiden ATP title and top 40 ranking
Sinner began the 2020 season at the Australian Open, where he recorded his first Grand Slam main draw win against Gaël Monfils in the first round before losing in the second round to Reilly Opelka in straight sets.[39] The COVID-19 pandemic disrupted the tour, leading to a suspension until August, after which Sinner competed primarily on hard courts, achieving consistent results including quarterfinal appearances in events like Rotterdam and a third-round run at the US Open.[39][40]His breakthrough came at the ATP 250 Sofia Open from November 8–14, where, as an unseeded 19-year-old, he defeated Vasek Pospisil in the final 6–4, 3–6, 7–6(3) to secure his maiden ATP Tour title.[41] In the tournament, Sinner navigated a challenging draw, beating opponents including Adrian Mannarino in the semifinals, and became the youngest first-time ATP winner since Kei Nishikori in 2008.[42][40] This victory earned him 250 ranking points and marked him as the youngest Italian to win an ATP title in the Open Era.[43]The Sofia triumph propelled Sinner into the ATP top 40 for the first time, finishing the year ranked No. 37 with 1,444 points, a significant rise from his No. 78 year-end 2019 position.[44][35] His 2020 record included 20 wins across ATP-level events, underscoring rapid progress amid a shortened season.[39]
2021: Multiple titles, Masters final, and top 10 breakthrough
Sinner commenced the 2021 season ranked No. 37, advancing to the fourth round of the Australian Open before losing to Gaël Monfils in five sets.[45] In March, he achieved his maiden ATP Masters 1000 final at the Miami Open, defeating Alexander Zverev in the semifinals but falling to Hubert Hurkacz 7-6(4), 6-4 in the championship match on March 28. This runner-up finish propelled him into the top 25 for the first time.[35]Transitioning to hard-court events later in the year, Sinner secured his first ATP 500 title at the Washington Open, overcoming Mackenzie McDonald 7-5, 4-6, 7-5 in the final on August 1, becoming the youngest winner of an ATP 500 event since Rafael Nadal in 2005.[46] He followed this with victories at the Sofia Open, defeating Gaël Monfils 6-3, 6-4 in the final on October 3, and the European Open in Antwerp, where he dispatched Diego Schwartzman 6-2, 6-2 on October 24.[47] These three ATP titles marked a career breakthrough, contributing to a season record of 49 wins against 22 losses.[45]Sinner's consistent performances culminated in his entry into the ATP top 10 on November 1, 2021, rising to No. 9 after the Antwerp triumph, and he finished the year ranked No. 10 with 3,350 points.[48][35] This ascent reflected his improved baseline power and serve effectiveness, enabling upsets over higher-ranked opponents throughout the season.
2022: Major quarterfinal appearances
In 2022, Sinner achieved quarterfinal appearances at three Grand Slam tournaments, defeating higher-ranked opponents en route and demonstrating improved consistency on major stages.[49] At the Australian Open, seeded 11th, he advanced to the quarterfinals for the second time in his career by upsetting 19th-seeded Denis Shapovalov in the third round and sixth-seeded Matteo Berrettini in the fourth, before falling to fourth-seeded Stefanos Tsitsipas 6–3, 6–4, 6–2 on January 25.[50][51]Sinner's Wimbledon campaign highlighted his grass-court adaptation, reaching the quarterfinals after a straight-sets second-round win over Marc-Andrea Huesler and a four-set victory over Carlos Alcaraz in the fourth round on July 3, prevailing 6–1, 6–4, 6–7(8), 6–3 despite failing to convert two match points in the third-set tiebreaker.[52] In the quarterfinals on July 5, he led top-seeded Novak Djokovic two sets to love but lost 5–7, 2–6, 6–3, 6–2, 6–2 in a match lasting over three hours.[53][54]At the US Open, Sinner extended his major quarterfinal streak by navigating early rounds, including a win over 24th-seeded Diego Schwartzman, to face Alcaraz in the quarterfinals on September 6–7. The five-set encounter, ending at 2:50 a.m. ET—the latest finish in tournament history—saw Sinner drop the first set but force tiebreakers in the second and third before Alcaraz rallied to win 6–3, 6–7(7), 6–7(0), 7–5, 6–3 after over five hours of play, with Sinner serving for the match at 5–4 in the fourth set.[55][56] His French Open run ended earlier in the fourth round with a retirement against seventh-seeded Andrey Rublev on May 30 due to a knee injury, trailing 1–6, 6–4, 0–2.[57] These deep runs contributed to Sinner's year-end ranking inside the top 15, underscoring his emerging threat in best-of-five-set formats.[35]
2023: Masters successes, Davis Cup victory, and No. 4 peak
Sinner captured his maiden ATP Masters 1000 title at the 2023 National Bank Open in Toronto, defeating Alex de Minaur 6-4, 6-1 in the final on August 13. This victory marked his first title at the Masters level, following semifinal appearances at Indian Wells and Miami earlier in the season.[58]Following Toronto, Sinner won the Vienna ATP 500 title in October, defeating Andrey Rublev in the final, and advanced to the final of the ATP Finals in Turin, where he lost to Novak Djokovic 6-3, 6-3.[58] These results propelled him to a career-high ATP singles ranking of world No. 4 on November 13, 2023.[35]In the Davis Cup Finals held in Málaga, Spain, from November 21–26, Sinner played a pivotal role in Italy's first title win since 1976, securing victories in the quarterfinals against the Netherlands (defeating Tallon Griekspoor 7-6(3), 6-2) and in the semifinals against Serbia (upsetting Djokovic 6-2, 2-6, 7-5).[59] In the final against Australia, after Matteo Berrettini defeated de Minaur 7-6(4), 6-3, Sinner clinched the championship with a 6-2, 6-2 win over Ben Shelton, completing a 2-0 victory for Italy.[59]
2024: Australian Open and US Open titles, world No. 1 ascension
Jannik Sinner entered the 2024 season ranked world No. 4 in the ATP singles rankings. He began with a title defense at the ATP 250 event in Auckland, New Zealand, defeating Aleksandar Vukic in the final on January 7, though specific details on that tournament fall outside the primary focus of his major achievements that year.At the Australian Open, Sinner reached his first Grand Slam final, facing Daniil Medvedev on January 28, 2024. Trailing two sets to love, Sinner mounted a comeback to win 3–6, 3–6, 6–4, 6–4, 6–3, securing his maiden major title and becoming the first Italian man to win the Australian Open. This victory propelled him to world No. 3 in the rankings the following week.[60]Sinner's consistent performances throughout the spring and early summer, including a title at the Halle Open on grass, positioned him to overtake Carlos Alcaraz for the top ranking. On June 10, 2024, he ascended to world No. 1 for the first time, becoming the 29th player in ATP history and the first from Italy to achieve the feat. He held the position through the US Open, accumulating significant points from prior successes like the Australian Open triumph.[35][61]As the top seed at the US Open, Sinner advanced to the final against Taylor Fritz on September 8, 2024. He defeated the American 6–3, 6–4, 7–5 in straight sets, claiming his second Grand Slam title of the year and completing a hard-court major sweep. This win marked him as the youngest man to win both the Australian Open and US Open in the same year since [Roger Federer](/page/Roger Federer) in 2004, further solidifying his dominance with a 70-6 win-loss record for 2024 up to that point.[62]
2025: Additional Grand Slam wins, doping resolution, and season continuation
Sinner opened the 2025 season by capturing his second Australian Open title on January 26, defeating Alexander Zverev in the final, 6–3, 7–6(7–4), 6–3, to claim his third major championship overall. This victory marked him as the first Italian man to win the Australian Open twice and extended his perfect 27-0 record in major semifinals and finals entering the year. Following the win, Sinner's doping case from 2024 tests advanced to resolution, with the World Anti-Doping Agency (WADA) announcing on February 15 a case resolution agreement imposing a three-month period of ineligibility from February 9 to May 4, 2025, backdated to cover prior provisional suspensions but resulting in missed hard-court Masters events like Indian Wells and Miami.[4][6]Returning after the ban, Sinner navigated the clay-court swing, reaching the French Open final but falling to Carlos Alcaraz in five sets, 6–4, 7–6(7–4), 4–6, 6–7(3–7), 6–7(2–10), in a match that highlighted his adaptation to slower surfaces despite limited preparation time. He then triumphed at Wimbledon on July 13, defeating Carlos Alcaraz in the final, 4–6, 6–4, 6–4, 6–4, securing his first grass-major title and becoming the youngest man in the Open Era to reach finals at all four Grand Slams in a single season. The doping resolution drew criticism from some quarters for its timing, which allowed Sinner to retain prior results while missing only non-mandatory events, though WADA cited evidentiary complexities under Article 10.8.2 of its code as the basis for settlement rather than full litigation at the Court of Arbitration for Sport.[63]In the hard-court season, Sinner won the Beijing title in September, defeating Tommy Paul in the final for his third ATP-level crown of the year outside majors, contributing to a 43-6 win-loss record through late October.[49][64] He advanced to the US Open final on September 7, losing to Alcaraz, 2–6, 6–3, 1–6, 4–6, but maintaining his streak of deep major runs. By October 24, Sinner reached the Vienna semifinals, defeating Alexander Bublik, 7-6(4), 6-3, signaling strong form heading into the ATP Finals and underscoring resilience post-ban with no apparent dip in serve dominance or baseline aggression.[65] His 2025 performance yielded four major finals and elevated his career titles to 21, though the ban's three-month span limited clay-season depth compared to rivals.[64]
2026: Australian Open semifinal appearance
As of February 1, 2026, Jannik Sinner has won four Grand Slam singles titles:
Australian Open 2024
US Open 2024
Australian Open 2025
Wimbledon 2025
He reached the semifinals of the 2026 Australian Open, entering as the defending two-time champion and defeating opponents including Hugo Gaston, James Duckworth, Eliot Spizzirri, Luciano Darderi, and Ben Shelton en route, but lost to Novak Djokovic in five sets. The tournament was ultimately won by Carlos Alcaraz, who defeated Djokovic in the final.[66]
Anti-doping case
Positive tests and initial findings
In March 2024, Jannik Sinner provided two urine samples that tested positive for metabolites of clostebol, a prohibited anabolic steroid under the Tennis Anti-Doping Programme (TADP) Article 4.1 as a non-specified substance in the S4 class of anabolic agents.[67][4] The first sample, collected in-competition on March 10 at the BNP Paribas Open in Indian Wells, California, detected clostebol presence at low levels, prompting the International Tennis Integrity Agency (ITIA) to notify Sinner privately and impose a provisional suspension under TADP Article 7.5.[63][68] Sinner appealed the suspension the same day, arguing no intentional use, and it was lifted by March 11, allowing him to continue competing.[67][68]The second sample, taken out-of-competition on March 18 ahead of the Miami Open, similarly returned positive for clostebol metabolites at approximately 122 picograms per milliliter (adjusted to 76 pg/mL for specific gravity), again at trace quantities insufficient to indicate typical intentional doping thresholds but confirming a rule violation under TADP Article 2.1 for presence of a prohibited substance.[69][70] Initial laboratory analysis by accredited WADA facilities identified the primary metabolite as 4-chloro-androst-4-ene-3,17-dione, derived from clostebol acetate, with no evidence of masking agents or other prohibited substances in either sample.[69][71]The ITIA's preliminary investigation, initiated immediately after the positives, treated both as separate anti-doping rule violations (ADRVs), with no adverse analytical findings from B-sample confirmations requested by Sinner.[67][72] The agency delayed public disclosure pending full review, formally charging Sinner on May 30, 2024, while emphasizing the low concentrations—described as "very low" and consistent with potential contamination rather than deliberate ingestion—did not alter the initial violation status.[67][68] These findings triggered an independent tribunal process under Sport Resolutions, though the positives themselves stood as objective detections verified by standard WADA protocols.[67]
Legal challenges and settlement
In September 2024, the World Anti-Doping Agency (WADA) filed an appeal with the Court of Arbitration for Sport (CAS) against the August 2024 decision of the Independent Tribunal of the International Tennis Integrity Agency (ITIA), which had exonerated Sinner from any fault or negligence in his two positive tests for clostebol metabolites in March 2024.[4] WADA sought to impose a ban of one to two years, arguing that Sinner bore at least significant fault for the ingestion, despite the ITIA's finding of contamination via his physiotherapist's spray containing the substance.[73] The CAS hearing was initially set for April 2025, allowing Sinner to continue competing uninterrupted during the interim period.[63]On February 15, 2025, Sinner and WADA announced a case resolution agreement under which Sinner accepted a three-month period of ineligibility, effective retroactively from February 9, 2025, to May 4, 2025, with permission to resume official training from April 13, 2025.[6] In exchange, WADA withdrew its CAS appeal, averting a full arbitration hearing that could have resulted in a longer suspension.[74] The settlement invoked WADA's case resolution provisions, which permit negotiated outcomes for unintentional violations where evidence of fault is contested, though critics noted the backdated ban effectively imposed minimal competitive disruption given Sinner's prior tournament participation.[75]The agreement drew scrutiny for its leniency compared to precedents like Simona Halep's four-year ban (later reduced), with some attributing it to Sinner's cooperation and the low metabolite quantities detected, deemed insufficient for performance enhancement even if intentional.[76] WADA's chief counsel emphasized that such settlements are not unique and align with strict liability principles under the World Anti-Doping Code, balancing evidentiary challenges with deterrence.[75] Sinner's legal team maintained the contamination explanation throughout, rejecting any intentional use.[77]
Aftermath and performance impact
Following the settlement agreement announced on February 15, 2025, between Sinner and the World Anti-Doping Agency (WADA), Sinner served a three-month period of ineligibility from February 9, 2025, to May 4, 2025, which included credit for four days of prior provisional measures.[4] WADA withdrew its appeal to the Court of Arbitration for Sport (CAS), accepting that Sinner bore no intention to cheat and that the trace exposure to clostebol provided no performance-enhancing benefit, consistent with the International Tennis Integrity Agency's (ITIA) earlier finding of minute quantities unlikely to confer any advantage even if deliberate.[4][78] The resolution avoided a potentially longer CAS-imposed sanction but drew criticism from some quarters for perceived leniency, though WADA emphasized the contamination stemmed from unintentional transfer via a team member's use of a therapeutic spray.[63]Sinner returned to the tour on May 5, 2025, at the Italian Open in Rome, defeating Mariano Navone 6-3, 6-4 in his opening match before a supportive home crowd, and advanced to the final, signaling no immediate rust from the layoff.[79] The ban forced him to forfeit ranking points from prior equivalents like Indian Wells and disrupted his clay-court preparation, potentially affecting momentum ahead of the French Open, yet he maintained his world No. 1 ranking through the period due to his pre-ban dominance, including defending the Australian Open title in January 2025 for his third Grand Slam.[63] Post-return, Sinner led the ATP Race despite the missed time, culminating in a Wimbledon title on July 13, 2025, where he overcame Carlos Alcaraz in a four-set final, demonstrating sustained elite-level execution in serve, baseline aggression, and mental resilience.[80][81]Analyses of the clostebol levels—below 1 nanogram per milliliter—aligned with expert testimony that no ergogenic effect occurred, as the substance metabolizes rapidly without altering Sinner's documented improvements in serve speed (averaging 130 mph) or first-serve percentage (over 70% in majors post-2024), which predated the positives and stemmed from technical refinements rather than pharmacological aid.[69] The episode prompted Sinner to rehire fitness coach Umberto Ferrara in July 2025, despite Ferrara's prior link to the contamination source, underscoring trust in the team's protocols amid ongoing scrutiny.[82] By October 2025, while facing domestic backlash for opting out of Davis Cup ties to prioritize recovery, Sinner's win rate exceeded 85% for the year, with no verifiable dip attributable to the case, affirming the tribunals' conclusions on negligible physiological impact.[83]
Playing style and technique
Strengths and shot-making
Jannik Sinner's shot-making is characterized by explosive power, flat ball trajectories, and exceptional pace generation, enabling him to dictate points from the baseline with minimal errors. His groundstrokes produce high racket-head speed, often resulting in shots that skid low and penetrate the court, compelling opponents into defensive positions early in rallies. This first-strike capability is evidenced by his dominance in short rallies (0-4 shots), where he won 59% of points in early 2024, outperforming rivals by a margin of 112 points in such exchanges.[84][85]Sinner's forehand stands out for its unique mechanics and efficacy, utilizing a semi-western grip to generate flat, penetrating shots with racket speeds exceeding typical benchmarks, producing a distinctive, high-pitched impact sound that signals its velocity. In 2024, it topped Tennis Data Innovations' metrics for shot quality among ATP players, reflecting superior depth, speed, and consistency that overwhelmed opponents like Daniil Medvedev in key matches.[86][87][88] Experts attribute its danger to efficient kinetic chain transfer, where hiprotation and shoulder turn amplify ball speed without excessive spin, allowing low-bouncing drives that exploit faster surfaces.[87]His two-handed backhand complements this aggression, ranking as the ATP's top performer in 2024 for combined power and spin metrics, with an extreme backswing enabling loaded extension and court position 23% closer to the baseline on average compared to peers. This technique yields heavy, topspin-infused drives that maintain rally control, as seen in his ability to redirect pace against top returners.[88][89][86] Sinner's serve further bolsters his shot-making arsenal, delivering flat, high-velocity first serves that rank among the tour's best for ace production and free points, underpinning his 73-6 record in 2024 by minimizing break opportunities.[85]
Weaknesses and evolution
Early in his career, Jannik Sinner's primary weaknesses included limited net play and volleying proficiency, as he predominantly relied on baseline rallies with heavy groundstrokes, making him vulnerable against players who attacked the net or employed slice and drop shots effectively.[90] Sinner himself identified net approaches as one of his biggest shortcomings, particularly in high-pressure situations where transitioning from defense to offense at the net exposed technical gaps.[91] Additionally, his game showed relative predictability on slower surfaces like clay, where sustained physical endurance and point construction were tested more rigorously, leading to higher error rates compared to hard courts.[92]Sinner's evolution accelerated from late 2023 into 2024, marked by targeted enhancements to his serve mechanics, shifting from a platform stance to a pinpoint technique that boosted second-serve effectiveness by approximately 9% in points won and reduced double faults.[93][94] This adjustment, combined with increased first-serve speed and placement accuracy, elevated his overall service game from a solid but unremarkable asset to a dominant weapon, contributing to a win rate exceeding 90% on serve in key 2024 matches.[95] Concurrently, he refined his net game through deliberate practice, transforming a prior vulnerability into a selective but effective tool; by mid-2024, he approached the net more assertively, with improved volley consistency noted by analysts as a "complete transformation" from earlier deficiencies.[96]Further adaptations included adding variety via enhanced drop shots and tactical slice usage, reducing predictability that had plagued matches like the 2024 US Open final, where 28 unforced errors stemmed partly from repetitive patterns.[97][98] Physical conditioning upgrades addressed clay-court stamina issues, enabling "enormous progress" in endurance, though it remains his relatively weaker surface due to the genre's demands for prolonged rallies.[92] Sinner has emphasized a willingness to experiment and accept short-term losses for long-term growth, as stated post-2025 US Open, prioritizing evolution over immediate results to counter elite opponents' adaptations.[9] These changes have minimized exploitable flaws, with peers like Carlos Alcaraz citing Sinner's near-absence of weaknesses as a defining challenge.[99]
Equipment and physical attributes
Sinner measures 6 feet 3 inches (191 cm) in height and weighs 170 pounds (77 kg), possessing a lanky, slim build that contributes to his large wingspan and ability to generate significant power from groundstrokes.[23][100] He plays right-handed with a two-handed backhand and is noted for exceptional court coverage, speed, and agility, which enable aggressive baseline play and rapid directional changes.[23][86]His primary equipment includes a customized Head TGT 301.4 frame, painted to match the retail Head Speed MP Auxetic model, with added weight for enhanced power and stability; the strung specifications feature a weight of 325 grams, balance point of 33.3 cm, and swingweight of 340.[101] Sinner strings the racquet with a full bed of Head Hawk Touch (1.30 mm gauge) at a tension of approximately 61 pounds (28 kg) in both mains and crosses, using a 16x19 pattern.[101][102] He employs Head Hydrosorb Pro overgrips without a dampener.[103] For footwear, Sinner wears Nike Air Zoom Vapor Pro models, prioritizing cushioning and lateral support for his movement demands.[104]
Coaching and support team
Key coaches and influences
Sinner's foundational coaching began locally in Sexten, Italy, under Heribert Mayr starting at age 12, who introduced him to competitive tennis amid his initial pursuits in skiing.[105]At age 13, he relocated to the Riccardo Piatti Tennis Centre in Bordighera, placing him under the guidance of Riccardo Piatti, a prominent Italian coach renowned for nurturing elite talents. Piatti mentored Sinner through his junior career, including a 2019 Australian Open boys' singles title, and into professional breakthroughs such as ATP Challenger successes and top-10 rankings by 2021, emphasizing technical precision and baseline consistency.[106][107]In February 2022, Sinner terminated his partnership with Piatti and the full Bordighera staff to pursue independent evolution, marking a pivotal shift after eight years of development under Piatti's system.[106]Simone Vagnozzi, an Italian former ATP player turned coach, integrated into Sinner's team in early 2022, leveraging prior familiarity to refine match tactics, serve patterns, and point construction; Vagnozzi's contributions proved instrumental in Sinner's aggressive evolution and major final appearances.[108][109]Darren Cahill, the Australian coach with a track record of elevating Andre Agassi, Lleyton Hewitt, and Simona Halep to world No. 1, joined in June 2022 to instill mental resilience, big-match execution, and professional demeanor, drawing from his experience with multiple Grand Slam campaigns.[108][110]As of October 2025, Vagnozzi and Cahill remain Sinner's primary coaches, with Cahill's tenure set to conclude at year's end despite Sinner's efforts to extend it, underscoring their combined influence on his ascent to multiple Grand Slam victories and sustained No. 1 ranking.[111][112]
Training regimen and team dynamics
Sinner's training regimen emphasizes functional strength, explosive power, and endurance to support prolonged high-intensity matches, incorporating gym sessions focused on core stability and rotational movements such as landmine rotations, dead bug variations, and medicine ball woodchoppers.[113] He utilizes Technogym equipment including the Skillrun treadmill for kinematic evaluations and explosive power development, the Technogym Bike for endurance cycling, dumbbells, kettlebells, a Wellness Rack, jump rope, wellness ball, and foam roller to enhance overall athleticism, speed, and mobility.[114] Preparatory phases often span three months, prioritizing physical conditioning with limited on-court tennis—under one hour daily initially—to build stamina for matches exceeding four hours, alongside recovery protocols.[115]To address prior injury vulnerabilities and optimize for Grand Slam demands, Sinner overhauled his routine with agility-focused footwork ladder drills, Olympic-style track sprints, ring pull-ups, weighted sled pulls, medicine ball crossovers, and explosive block exercises for rapid reaction and court coverage, complemented by mental conditioning via Formula Medicine techniques to manage cognitive load in extended rallies.[116]Resistance band work targets upper body endurance and joint stability, including triceps extensions, shoulder presses, wrist flexions, and band pull-aparts, while dynamic drills like lateral shuffles, backpedals, and serve-mimicking weighted ball throws bolster shot precision and power.[113]Sinner's team dynamics reflect a core coaching duo of Darren Cahill, who joined in 2022 to refine tactical execution, and Simone Vagnozzi, handling daily on-court drills, fostering a stable leadership that has driven his ascent to world No. 1.[108] In 2024, he integrated former Novak Djokovic specialists Marco Panichi as fitness coach and Ulises Badio as physiotherapist to elevate conditioning, but parted ways with both shortly before Wimbledon 2025, citing a strategic need for evolution after successes like the Roland Garros final and a 19-3 record, without attributing fault to performance lapses beyond a Halle Open semifinal exit.[117][118] These adjustments underscore Sinner's proactive approach to team refreshment, maintaining optimism for sustained competitiveness despite turnover, with recent additions like physiotherapist Alejandro Resnicoff signaling ongoing specialization.[119]
Jannik Sinner and Carlos Alcaraz have developed one of the most prominent rivalries in modern men's tennis, contesting 15 ATP Tour matches as of September 2025, with Alcaraz holding a 10-5 edge in the head-to-head record.[120][121] Their encounters often feature contrasting styles: Sinner's precise baseline power and strong serving against Alcaraz's explosive athleticism, drop shots, and aggressive net play, resulting in closely fought matches that have elevated both players' games.[122][123]The rivalry began at the 2021 Paris Masters, where Alcaraz defeated Sinner 7-6(1), 7-5 in the second round. A pivotal early clash occurred at the 2022 US Open quarterfinals, an epic five-set match lasting over five hours that Alcaraz won 6-3, 6-7(7), 6-7(0), 7-5, 6-3, propelling him to his first major title and highlighting their potential as future rivals.[124][125] Sinner secured his first win over Alcaraz in the 2023 Miami Open semifinals (6-7(4), 6-4, 6-2) and followed with a straight-sets victory in the 2023 China Open final, demonstrating his growing adaptability on hard courts.[126]Alcaraz has dominated on clay and grass, winning all five clay meetings and key grass-court battles, including the 2025 Wimbledon final. Sinner has fared better on hard courts, with victories like the 2023 Beijing final and the 2024 Indian Wells semifinals, though Alcaraz reclaimed momentum in recent high-stakes finals.[127] Their 2025 meetings included Alcaraz's retirement-forced win in the Cincinnati final (Sinner led 5-0 in the first set before withdrawing due to injury) and a decisive US Open final where Alcaraz triumphed 6-2, 3-6, 6-1, 6-4, marking their third consecutive Grand Slam final confrontation.[128][129][130] These matches have mutually driven improvements, with Sinner noting post-US Open the need to make his game less predictable and Alcaraz crediting the rivalry for pushing both to their limits.[131][132]In January 2026, Sinner and Alcaraz are scheduled to compete in an exhibition match at the Inspire Arena in Incheon, South Korea, on January 10. Sinner arrived at Incheon Airport in Seoul on January 7, where he was warmly greeted by a large number of Korean fans seeking autographs and selfies.[133][134]
With Daniil Medvedev
Jannik Sinner and Daniil Medvedev have faced each other 15 times on the ATP Tour as of November 2024, with Sinner holding an 8–7 lead in the head-to-head record.[135]Medvedev initially dominated the matchup, winning six of the first nine encounters between 2020 and 2023, often exploiting Sinner's relative inexperience with his defensive baseline play and tactical variety.[136] Their rivalry intensified in 2024, when Sinner reversed the dynamic by securing five victories in six meetings, demonstrating enhanced aggression and mental resilience against Medvedev's counterpunching style.[136]A pivotal encounter occurred in the 2024 Australian Open final on January 28, where Sinner staged a comeback from two sets to love down—trailing 1–6, 2–6—to defeat Medvedev 3–6, 6–4, 7–6(4), 6–3, claiming his first Grand Slam title.[137] This match highlighted Sinner's improved serve and forehand depth under pressure, as he won 80% of first-serve points in the final two sets after Medvedev's early control.[136]Medvedev responded later that year by upsetting Sinner in the Wimbledon quarterfinals on July 9, prevailing 7–6(7), 4–6, 7–6(4), 2–6, 6–3 in a five-set battle lasting over four hours, leveraging net approaches and pace disruption on grass.[135]Sinner reasserted dominance in subsequent hard-court clashes, including a straight-sets semifinal win at the Miami Masters in March (6–1, 6–2) and a quarterfinal victory at the US Open on September 3 (0–6, 6–1, 6–1, 7–5), where he overcame an opening-set loss by breaking Medvedev's serve seven times.[135] Their most recent meeting came in the round-robin stage of the 2024 Nitto ATP Finals on November 14, with Sinner winning 6–4, 6–1 to clinch the group and advance.[138] Sinner has credited Medvedev with fostering his growth, noting the Russian's ability to expose and force adaptations in his game.[139] The matchup remains a stylistic contrast, pitting Sinner's power baseline game against Medvedev's retrieval and angles, with outcomes often hinging on serve efficiency and error management.[136]
With Novak Djokovic
Jannik Sinner holds a 6–4 lead over Novak Djokovic in their professional head-to-head record as of October 2025, encompassing 10 matches across ATP events, Grand Slams, and the Davis Cup.[54][140] The rivalry features stylistic parallels, with both players renowned for all-court baseline dominance, elite backhand precision, and the ability to absorb pace while countering aggressively from defensive positions; statistical metrics such as unforced error rates and point-winning efficiency from the back of the court show near-symmetry between them.[141][142] Djokovic first encountered Sinner during practice sessions around 2014, when the then-teenage Italian displayed a lanky build and fluid ball-striking akin to Djokovic's early career, fostering an early mentor-like dynamic despite the competitive tension.[141]Djokovic dominated the initial phase, securing victories in their debut ATP clash at the 2021 Monte Carlo Masters (6–4, 6–2 on clay), followed by straight-sets wins at Wimbledon in 2022 quarterfinals (5–7, 2–6, 6–3, 6–2, 6–2 on grass) and 2023 semifinals (6–3, 6–4, 7–6(4) on grass), leveraging his experience and grass-court prowess to exploit Sinner's relative inexperience in majors.[143] A fourth win came earlier in indoor hard courts, underscoring Djokovic's edge in high-stakes scenarios during Sinner's rise to the top 10. These encounters highlighted Sinner's potential but also his vulnerabilities in prolonged rallies against Djokovic's tactical versatility and mental resilience.Sinner reversed the series starting in November 2023, defeating Djokovic 7–5, 6–7(5), 7–6(2) in the ATP Finals round-robin on indoor hard courts, followed days later by a 6–2, 2–6, 7–5 triumph in the Davis Cup final, clinching Italy's first title since 1976 and marking the first time an opponent beat Djokovic in a decisive Davis Cup rubber since 2012.[143] This momentum carried into 2024 Australian Open semifinals (6–1, 6–2, 6–7(6), 6–3 on hard courts) and extended through 2025 with wins at French Open semifinals (6–4, 7–5, 7–6(3) on clay), Wimbledon semifinals (6–3, 6–4, 6–4 on grass), establishing a streak of six consecutive victories that signaled Sinner's maturation and adaptation to Djokovic's defensive mastery.[144][145]The rivalry's intensity peaked in the October 2025 Six Kings Slam exhibition semifinals, where Sinner prevailed 6–4, 6–2 on hard courts; Djokovic later conceded attempting to unsettle Sinner by engaging the crowd but acknowledged the Italian's superior form, stating, "It's never nice when somebody kicks your a** like this."[146] Djokovic has drawn explicit comparisons between Sinner's ascent and his own prime, praising the world No. 1's consistency and power as a mirror of peak-era self-reliance, while Sinner's dominance in recent majors underscores a generational transition without diminishing Djokovic's enduring influence on his technical evolution.[147]
Achievements and records
Grand Slam performances
Jannik Sinner has won four Grand Slam singles titles as of February 1, 2026, with victories at the Australian Open in 2024 and 2025, the US Open in 2024, and Wimbledon in 2025.[148][149] He reached two additional finals in 2025, losing to Carlos Alcaraz at both the French Open and US Open.[150] Sinner's Grand Slam final record stands at 4-2.At the Australian Open, Sinner claimed his maiden major title in 2024 by defeating Daniil Medvedev in the final.[148] He defended the crown successfully in 2025, beating Alexander Zverev 6-3, 7-6(4), 6-3 in the final without facing a break point.[151] In 2026, he reached the semifinals but lost to Novak Djokovic, with the tournament won by Carlos Alcaraz.Sinner's French Open results peaked in 2025 with a runner-up finish, where he lost to Alcaraz in a five-set marathon lasting 5 hours and 29 minutes, the longest final in tournament history, with the score 4-6, 6-7(4), 6-4, 7-6(7-3), 7-6(10-2). Prior bests include a semifinal in 2024 and quarterfinal in 2020.[57]In Wimbledon, Sinner secured his first title in 2025, overcoming Alcaraz 4-6, 6-4, 6-4, 6-4 in the final after earlier defeating Novak Djokovic in the semifinals.[152] His previous best was a semifinal appearance in 2023.[153]Sinner won the 2024 US Open, contributing to his four major triumphs.[148] In 2025, he advanced to the final but fell to Alcaraz 6-2, 3-6, 6-1, 6-4.[150]
ATP titles and year-end championships
Sinner has secured 21 ATP Tour-level singles titles as of October 2025, encompassing four Grand Slam tournaments, four ATP Masters 1000 events, six ATP 500 series tournaments, and six ATP 250 events, along with the ATP Finals.[64][154] His breakthrough came in 2020 with a victory at the Sofia Open, followed by a career-high eight titles in 2024, including two majors and the season-ending championship.[64] In 2025, he added three more, defending his Australian Open crown and claiming Wimbledon for the first time.[64]The following table lists Sinner's ATP singles titles in chronological order:
Regarding year-end championships, Sinner first qualified for the ATP Finals in 2022 but did not advance from the group stage.[64] He reached the semifinals in 2023 before losing to Djokovic.[64] In 2024, as world No. 1, he won the title undefeated, dropping only 33 games across five matches, culminating in a straight-sets victory over Fritz in Turin on November 17.[156][157] This marked the first ATP Finals win by an Italian on home soil and contributed to his record-breaking season with 70 match victories.[158] As of October 2025, Sinner has qualified for the 2025 ATP Finals but the event outcome remains pending.[64]
Rankings milestones and Open Era records
Sinner first entered the ATP rankings in February 2018 after junior successes and broke into the top 100 in July 2019 following his maiden Challenger title in Bergamo that February.[159][160] He surged into the top 10 on November 1, 2021, reaching No. 9 after strong showings in ATP events, becoming one of the youngest players to achieve this milestone at age 20.[161][3]Continued breakthroughs, including semifinals at majors and Masters 1000 titles, propelled Sinner to a career-high of world No. 1 on June 10, 2024, the first Italian to claim the top ranking after winning the Australian Open earlier that year.[162] He clinched year-end No. 1 honors for 2024, securing the position with dominant hard-court results.[162]Sinner's reign at No. 1 lasted 65 consecutive weeks until September 7, 2025, ranking as the fourth-longest initial stint in ATP history and surpassing Novak Djokovic's first 53-week hold.[163] This period included holding the top spot for an entire calendar year in 2025, a feat achieved by only ten players in the Open Era.[164] By October 2025, he had logged 81 straight weeks in the top 2, extending his elite consistency.[165]In July 2025, Sinner exceeded 12,000 ATP ranking points after Wimbledon success, joining Djokovic, Nadal, Federer, and Alcaraz as one of five men to reach this threshold.[166]Sinner holds several Open Era records tied to his peak performance, including becoming the youngest man at 24 to reach finals in all four Grand Slams within one season in 2025.[10] He is also the youngest player to advance to quarterfinals across all four majors in consecutive seasons, achieving this at age 24 in 2024-2025.[167] Additionally, he became the fourth player in the Open Era to reach consecutive Australian Open and US Open finals, matching Jimmy Connors, Pete Sampras, and Roger Federer.[168]
Off-court endeavors
Endorsements and business interests
Sinner has secured numerous endorsement deals, reflecting his rising commercial appeal as the world No. 1 tennis player. His primary apparel and footwear sponsor is Nike, with a reported long-term contract contributing significantly to his estimated $27 million in annual endorsement earnings as of 2024.[169][170] He uses Head rackets under a sponsorship agreement signed in 2019, alongside deals with luxury brands including Gucci for fashion, Rolex for watches, and Alfa Romeo for automotive promotion.[171][172]Additional partnerships include Italian coffee company Lavazza, which endorsed him at age 17 in 2019; banking firm Intesa Sanpaolo; pasta brand De Cecco; skincare line La Roche-Posay (an L'Oréal subsidiary); telecommunications provider FastWeb S.p.A.; collectibles company Panini; fitness equipment maker Technogym; and hotel chain Explora.[171][173][169] These 14 sponsors, as tallied in 2025 analyses, have propelled his off-court income, with total endorsement value linked to a projected $200 million payday over multiple years despite a brief doping suspension earlier that year, during which brands like Nike and Lavazza continued public support via his social media.[173][174]Beyond endorsements, Sinner manages business interests through Monte Carlo-based entities, including Foxera Holding as a central financial hub for channeling tournament earnings and sponsorship revenue.[175] He established Wooly Lemon SRL in Monaco around 2020, focusing on entrepreneurial activities amid his residency there.[176] Investments include Milan real estate holdings and equity stakes in Italian startups, contributing to personal assets estimated between $40 million and $50 million as of mid-2024, diversified beyond tennis to mitigate career risks.[177][178]
Philanthropic efforts
Sinner established the Jannik Sinner Foundation in 2025, a non-profit organization aimed at empowering children globally through access to education and sports programs.[179] The initiative draws from Sinner's personal background, emphasizing how structured opportunities in these areas transformed his own path from a small Italian town to professional tennis success.[25]The foundation was officially unveiled on September 19, 2025, during an event in Milan attended by approximately 100 guests, including Sinner's family and close associates.[180] Its inaugural major partnership involves contributing to the Global Partnership for Education (GPE), the largest international fund supporting basic education in developing countries, with a focus on underserved youth.[181] This collaboration underscores the foundation's commitment to scalable impact, prioritizing evidence-based interventions over ad-hoc aid.[182]Donations to the foundation are facilitated through direct bank transfers, with proceeds directed toward sports academies and educational scholarships in regions lacking resources.[183] As of late 2025, specific project outcomes remain forthcoming, though the effort aligns with broader ATP player initiatives for youth development without reliance on government or institutional intermediaries prone to inefficiency.[184]
Media presence and public image
Jannik Sinner has cultivated a public image characterized by stoicism, professionalism, and humility, often highlighted in media profiles as a counterpoint to more emotive peers in tennis.[185] His reserved demeanor during matches and interviews has endeared him to fans seeking authenticity amid the sport's high-pressure environment, with outlets describing him as a "new face of tennis" gracing global magazine covers like Esquire for his blend of athletic prowess and understated appeal.[186] This perception aligns with his on-court focus, where emotional restraint is credited for sustained performance under scrutiny.[187]In Italy, Sinner's popularity transcends tennis, positioning him as the nation's most admired athlete and sparking a "Sinner effect" that has boosted participation in the sport nationwide, with club memberships rising significantly post his Grand Slam victories.[188][189] Media coverage in the country portrays him as a cultural icon, with widespread acclaim during events like the ATP Finals in Turin, where his world No. 1 status amplified national pride.[190] Globally, his appeal has grown through high-engagement social media, with his official Instagram account @janniksin featuring a bio that reads "Tennis player @janniksinnerfoundation" to promote his Jannik Sinner Foundation, amassing over 5 million Instagram followers by mid-2025, including surges after Wimbledon wins where posts generated top media value via sponsorship tie-ins like Rolex and Ralph Lauren.[191][192] Sinner has adapted his online strategy to share more personal content, such as vlogs and match reflections, earning fan approval for revealing glimpses beyond his athletic persona.[193]The 2024 anti-doping violations, involving traces of clostebol from contamination via a physiotherapist's spray, initially cleared Sinner of fault but led to provisional suspensions that he appealed successfully.[194] In February 2025, to resolve WADA's appeal and avert prolonged litigation, Sinner accepted a three-month ban, forfeiting points from the 2024 Indian Wells Masters, which some critics viewed as compromising his full innocence claim despite no admission of intentional use.[4][63] This episode drew scrutiny over tennis's anti-doping processes, with observers noting uneven media coverage compared to similar cases and questioning systemic leniency, though Sinner's reputation endured, buoyed by continued successes and strong Italian support.[195][196] He won fan favorite honors at the 2024 ATP Awards, reflecting resilient public affinity amid the controversy.[197]
Personal life and criticisms
Relationships and privacy
Sinner has maintained a notably private personal life, rarely discussing romantic relationships in public forums and avoiding social media posts that reveal intimate details. In a 2023 interview, he emphasized compartmentalizing his professional and private spheres to preserve focus and mental equilibrium.[198] This approach extended to instructing close associates, such as Andrey Rublev, not to share images of him with partners online during earlier relationships.[199]From approximately 2020 to early 2024, Sinner was in a relationship with Italian model Maria Braccini, which he confirmed in a February 2024 interview but described as kept largely out of the spotlight, with family rarely appearing at matches.[200] In May 2024, he publicly acknowledged dating Russian professional tennis player Anna Kalinskaya, marking a shift toward limited openness amid their shared athletic lifestyles; the couple was observed training together and celebrating his US Open victory with a courtside kiss.[201][202] However, the relationship ended by May 2025, as Sinner confirmed during an Italian Open press conference following his doping suspension, citing irreconcilable differences without further elaboration.[203][204]Post-breakup, Sinner has faced unconfirmed speculation linking him to figures such as Russian model Lara Lieto and a Danish model, based on public sightings, but he has neither affirmed nor denied these associations, consistent with his reticence on the matter.[205] As of mid-2025 interviews, he expressed no immediate plans for marriage or family, prioritizing career stability over public romantic pursuits.[206] This guarded stance aligns with his broader aversion to media intrusion, as evidenced by minimal disclosures even after major personal milestones.[207]
Lifestyle choices and work ethic
Sinner maintains a disciplined daily routine centered on physical conditioning, recovery, and mental preparation, committing to rigorous strength and cardiovascular workouts as the foundation of his professional regimen.[208] His training emphasizes core stability and rotational power, incorporating exercises such as landmine rotations, dead bug variations, and medicine ball throws to enhance on-court explosiveness and endurance.[113] This structured approach, influenced by his upbringing in a family that instilled a strong work ethic through parental example, prioritizes consistency over intensity, aligning habits with long-term performance goals.[209][210]In terms of nutrition, Sinner follows a flexible, plant-leaning diet designed for sustained energy and recovery, featuring balanced meals with lean proteins, complex carbohydrates, and vegetable-heavy components rather than rigid restrictions. Breakfast typically provides morning fuel through nutrient-dense options, while lunches and dinners incorporate recovery-focused elements like proteins and carbs; pre- and post-workout snacks maintain metabolic stability.[211] This conscious approach avoids extremes, allowing adaptations for tournament demands, such as hydration adjustments in hot conditions, without adhering to fully vegan or gluten-free protocols.[212] His entourage supports this by fostering relaxation amid travel, preventing burnout from the ATP schedule.[108]Sinner's work ethic extends to mental discipline, honed through "mental economy training" that promotes self-leadership and efficient decision-making under pressure, as guided by specialist Dr. Riccardo Ceccarelli.[213] Pre-match rituals underscore his preference for rest over excess activity, including extended sleep to optimize readiness, reflecting a philosophy that values recovery—such as returning home post-victory instead of immediate additional training—to sustain peak form.[214][215] This balanced lifestyle, rooted in alpine origins and familial values, eschews distractions like nightlife in favor of purposeful focus, contributing to his rapid ascent without reported indulgences or lapses in professionalism.[209][210]
Criticisms regarding national duties
Sinner's announcement on October 21, 2025, that he would not participate in the Davis Cup Finals hosted by Italy in Bologna from November 19–24 drew widespread condemnation from Italian media and public figures, who accused him of shirking patriotic obligations despite the event's national significance and public funding.[83][216] Italian outlets labeled the decision an "insult to the flag," arguing it betrayed the expectations for the world's top-ranked player to represent his country at a home tournament following Italy's strong recent performances in the competition.[217]The consumer protection group Codacons escalated the rhetoric by petitioning authorities to revoke Sinner's national awards and honors, claiming his absence disrespected taxpayers who subsidize such events and undermined Italy's sporting prestige.[218] Sinner, who has previously competed for Italy in Davis Cup ties—including key contributions to the team's 2023 runner-up finish and 2024 semifinal run—cited fatigue from a demanding season and the need for recovery ahead of 2026 as his rationale, while acknowledging the backlash as understandable given the domestic context.[219]Critics contrasted public support for Sinner during his February–May 2025 doping suspension—where Italians largely rallied behind him against perceived unfairness—with this perceived abandonment, viewing it as prioritizing individual ATP pursuits over collective national duty in a format that has historically fostered team loyalty among Italian players.[83][220] Defenders in the international tennis community, including coach Patrick Mouratoglou, countered that elite athletes bear no binding obligation to team events, emphasizing Sinner's right to manage his physical limits after logging over 70 matches in 2025, though such arguments gained limited traction amid Italy's nationalistic fervor.[221][222] This episode highlighted tensions between modern professional tennis's individual focus and traditional expectations of national service in Italy, where Davis Cup participation has long symbolized athletic citizenship.[223]
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Daniil Medvedev
Taylor Fritz
Alexander Zverev
Carlos Alcaraz
Novak Djokovic
