Tennis players at the 2020 Summer Olympics

Sania Mirza (born 15 November 1986) is an Indian professional tennis player. A former doubles world No. 1, she has won six major titles – three in women's doubles and three in mixed doubles. From 2003 until her retirement from singles in 2013, she was ranked by the Women's Tennis Association as the Indian No. 1 in singles. Throughout her career, Mirza has established herself as one of the most well-known, highest-paid, and influential athletes in India.

Fabio Fognini (born 24 May 1987) is an Italian professional tennis player. He is currently ranked as the world number 17 by the Association of Tennis Professionals. Fognini's most successful surface is red clay, upon which he has won eight of his nine ATP singles titles, most notably at the 2019 Monte-Carlo Masters, as well as having reached the quarterfinals of the 2011 French Open. Together with Simone Bolelli, Fognini won the 2015 Australian Open doubles championship, becoming the first all-Italian men's pair to win a Grand Slam title in the Open era.

Gaël Sébastien Monfils (born 1 September 1986) is a French professional tennis player. He reached a career-high ATP world No. 6 singles ranking on 7 November 2016. His career highlights include reaching two Grand Slam singles semifinals at the 2008 French Open and 2016 US Open and three ATP Tour Masters 1000 singles finals – two at the Paris Masters (2009, 2010) and the other at the Monte Carlo Masters (2016).

Novak Djokovic (Serbian: Новак Ђоковић, Novak Đoković, born 22 May 1987) is a Serbian professional tennis player. He is currently ranked as world No. 1 by the Association of Tennis Professionals (ATP). Djokovic has been No. 1 for 307 weeks, and has finished as year-end No. 1 on six occasions, an Open Era record shared with Pete Sampras. Djokovic has won 17 Grand Slam men's singles titles, including a record eight Australian Open titles. He is the only player to win all of the elite tournaments on the modern ATP Tour – that is, all four Grand Slam tournaments, all nine ATP Masters 1000 tournaments, and the ATP Finals. In particular, he is also the only player to complete the career Golden Masters, which he has done twice. Overall, he has won 81 ATP singles titles, including a record eight Australian Open titles and a record 36 Masters events.

Maria Sakkari (Greek: Μαρία Σάκκαρη, born 25 July 1995) is a Greek professional tennis player. She reached her career-high singles ranking of No. 20 on 24 February 2020. Her best WTA doubles ranking is No. 169, achieved on 9 September 2019.

Belinda Bencic (Slovak: Belinda Benčičová, born 10 March 1997) is a Swiss professional tennis player. She has a career-high ranking of No. 4 by the Women's Tennis Association (WTA) which she achieved in February 2020. Bencic has won five singles titles, including a gold medal at the 2020 Tokyo Olympics, and two doubles titles on the WTA Tour.

Garbiñe Muguruza Blanco (born 8 October 1993) is a Spanish-Venezuelan professional tennis player and former world No. 1. Since turning professional in 2012, she has won eight singles titles, including two majors: the 2016 French Open and the 2017 Wimbledon Championships.

Petra Kvitová ( kə-VIT-ə-və, born 8 March 1990) is a Czech professional tennis player. Known for her powerful left-handed groundstrokes and variety, Kvitová turned professional in 2006 and has won 28 career singles titles, two of which are Grand Slam titles, the Wimbledon Championships in 2011 and in 2014. She also won a bronze medal while representing the Czech Republic at the 2016 Rio Olympics. Her career-high ranking of world No. 2 was achieved on 31 October 2011.

Alizé Cornet (born 22 January 1990) is a French professional tennis player. Cornet has won six singles and three doubles titles on the WTA Tour, as well as three singles and three doubles titles on the ITF Circuit. On 16 February 2009, she reached her highest WTA singles ranking of world No. 11. Cornet has also made the second week at each of the four Grand Slam events, having reached the fourth round at the 2009 Australian Open, the 2014 Wimbledon Championships, the 2015 and 2017 French Opens, and the 2020 US Open.

Sir Andrew Barron Murray OBE (born 15 May 1987) is a British professional tennis player from Scotland. He has been ranked world No. 1 by the Association of Tennis Professionals (ATP) for 41 weeks, and finished as the year-end No. 1 in 2016. He has won three Grand Slam singles titles, including two at Wimbledon, and has reached eleven major finals in total. Murray was ranked in the top 10 for all but one month from July 2008 through October 2017, and finished no lower than No. 4 in eight of the nine year-end rankings during that span. Murray has won 46 ATP singles titles, including 14 ATP Masters 1000 events.