Luisa Stefani

Luisa Veras Stefani (born 9 August 1997) is a professional tennis player from Brazil who specializes in doubles. Stefani is the first Brazilian woman to reach the WTA top 10 in the Open era. This milestone for Brazilian tennis was hit on 1 November 2021, when she reached a career-high ranking of world No. 9 in doubles. On 20 May 2019, she reached a singles ranking of No. 431. She had an ITF combined junior ranking of No. 10, on March 2015.

Stefani won the mixed-doubles competition at the 2023 Australian Open with Rafael Matos, becoming the first all Brazilian pair to win a major title. With that, Stefani also became the second Brazilian woman to win any major title—after Maria Bueno—and the first Brazilian woman ever to win a mixed doubles title at the Australian Open. She is also one of two Brazilians to win an Olympic medal for tennis, partnering Laura Pigossi at the 2020 Tokyo Olympics to win bronze in women's doubles.

At the age of 14, Stefani's family moved to the United States, where it was hoped she would develop herself better in tennis. She started training at Saddlebrook Tennis Academy, and competed in the main draws of all four junior Grand Slams, eventually reaching two junior Grand Slam semifinals in doubles: the 2014 French Open and the 2015 US Open. As she attended Pepperdine University, with a college scholarship, Stefani studied advertising before pausing her academic program. In the Intercollegiate Tennis tour Stefani was ranked as high as No. 2 in the ITA rankings, and was also named the 2015 ITA National Rookie of the Year, having compiled a 40–6 record in her freshman season and reached the semifinals of the 2016 NCAA Singles Championships, where she lost to eventual champion Danielle Collins.

Stefani attained a career-high ranking of world No. 10 on the ITF Junior Circuit.

Stefani made her WTA Tour main-draw debut at the 2015 Brasil Tennis Cup where she received a singles main-draw wildcard.

Until 2019, Stefani tried to play both singles and doubles. The doubles kept being more productive, and once an invitation to make her tour debut at the 2019 Monterrey Open with Giuliana Olmos led to the semifinals and a ranking increase, she decided to stop playing singles to have more chances at appearing in bigger events. Soon afterward, Stefani made her major main-draw debut at French Open, partnering Australian Astra Sharma in doubles.

In September, with Hayley Carter as partner, she reached the first WTA Tour doubles final at the Korea Open and, the following week, won the first career title at the Tashkent Open. With these campaigns, she entered the top 100 and reached a career-high ranking in doubles of No. 75 on 21 October 2019. After that, Stefani established a fixed partnership with Carter.

At the 2019 Pan American Games in Lima, Luisa won a bronze medal alongside Carolina Alves.