Kristina Mladenovic

Kristina "Kiki" Mladenovic (born 14 May 1993) is a French professional tennis player and a former world No. 1 in doubles. Her best singles ranking is world No. 10. She is a nine-time Grand Slam champion, having won the 2016 and 2022 French Open women's doubles titles partnering Caroline Garcia, and the 2018 Australian Open, 2019 and 2020 French Opens and 2020 Australian Open with Tímea Babos.

In mixed doubles, Mladenovic won the 2013 Wimbledon Championships and 2014 Australian Open alongside Daniel Nestor, and the 2022 Australian Open with Ivan Dodig. She has also reached a further six major finals across women's and mixed doubles. Mladenovic became world No. 1 in doubles for the first time in June 2019, and has held the top ranking for a total of 12 weeks. She has won 28 career doubles titles, including the 2018 and 2019 WTA Finals and four at WTA 1000 level.

Mladenovic has also enjoyed success in singles, and reached her career-high ranking of world No. 10 in October 2017. She has won one WTA Tour singles title, at the 2017 St. Petersburg Trophy, and finished runner-up on seven occasions. Her best Grand Slam performance was reaching the quarterfinals at the 2015 US Open and the 2017 French Open.

Mladenovic has represented France in the Fed Cup and Billie Jean King Cup since 2012, and was part of the team which won the competition in 2019. She has also competed at the Olympic Games on three occasions.

Kristina Mladenovic was born in Saint-Pol-sur-Mer, in the Nord department of France. Her father is Dragan Mladenović, a former Yugoslav handball player of Serbian origin, and her mother Dženita Helić is a Serbian former volleyball player of Serbian origin. They moved to France in 1992 when Dragan was signed by Dunkerque HGL. All became French citizens. Mladenovic has a brother named Luka. She dated Austrian tennis player Dominic Thiem from the middle of 2017 until the couple split in November 2019.

Mladenovic started playing juniors in May 2006. In 2007, she became the European Under-14 singles champion. Her biggest junior achievement was at the 2009 French Open girls' singles, where she beat Daria Gavrilova of Russia in two sets in the final. Her highest junior ranking was No. 1, on 8 June 2009. She advanced to both the girls' singles and doubles finals at the 2009 Wimbledon Championships, losing to Noppawan Lertcheewakarn in the singles. In doubles, with partner Silvia Njirić, lost also to Lertcheewakarn, who partnered with Sally Peers.

Mladenovic began playing on the ITF Women's Circuit in September 2007. On the WTA Tour, she tried to qualify for Open Gaz de France but lost her first match to Petra Kvitová.

Mladenovic turned professional in 2009, making her Grand Slam debut at that year's Australian Open where she received a wildcard but was defeated by 14th seed Patty Schnyder. In July, she qualified for the Prague Open and lost in the first round to Zarina Diyas of Kazakhstan.