Rafael "Rafa" Nadal Parera is a Spanish professional tennis player, currently ranked world No. 2 in men's singles tennis by the Association of Tennis Professionals (ATP).
Roger Federer is a Swiss professional tennis player who is currently ranked world No. 3 in men's singles tennis by the Association of Tennis Professionals (ATP). He has won 20 Grand Slam singles titles—the most in history by a male player—and has held the world No. 1 spot in the ATP rankings for a record total of 310 weeks, including a record 237 consecutive weeks. After turning professional in 1998, he was continuously ranked in the top ten from October 2002 to November 2016.
Serena Jameka Williams is an American professional tennis player and former world No. 1. The Women's Tennis Association (WTA) ranked her world No. 1 in singles on eight separate occasions between 2002 and 2017. She reached the No. 1 ranking for the first time on July 8, 2002. On her sixth occasion, she held the ranking for 186 consecutive weeks, tying the record set by Steffi Graf. In total, she has been No. 1 for 319 weeks, which ranks third in the Open Era among female players behind Graf and Martina Navratilova.
Dominic Thiem is an Austrian professional tennis player. He currently has a career-high ranking of World No. 4 by the Association of Tennis Professionals (ATP), which he first achieved on 6 November 2017. He is the second highest-ranked Austrian player in history, behind Thomas Muster. He has won thirteen ATP singles titles and reached twenty-one finals.
Stefanos Tsitsipas is a Greek professional tennis player. He is the youngest player ranked in the top 10 by the Association of Tennis Professionals (ATP) and has a career-high ranking of No. 6 in the world, making him the highest-ranked Greek player in history. He has won three ATP singles titles and reached seven finals.
Sir Andrew Barron Murray is a British professional tennis player from Scotland. Murray represents Great Britain in his sporting activities and is a three-time Grand Slam tournament winner, two-time Olympic champion, Davis Cup champion, winner of the 2016 ATP World Tour Finals, and former world No. 1.
Ashleigh Barty is an Australian professional tennis player and former cricketer. She is ranked No. 1 in the world in singles by the Women's Tennis Association (WTA) and is the second Australian to hold this top ranking after Evonne Goolagong Cawley. She is also a top ten player in doubles, having achieved a career-high ranking of No. 5 in the world. Barty has won six singles titles and ten doubles titles on the WTA Tour, including one Grand Slam singles title at the 2019 French Open and one Grand Slam doubles title at the 2018 US Open with partner CoCo Vandeweghe.
Maria Yuryevna Sharapova is a Russian professional tennis player. A United States resident since 1994, Sharapova has competed on the WTA tour since 2001. She has been ranked world No. 1 in singles by the WTA on five separate occasions, for a total of 21 weeks. She is one of ten women, and the only Russian, to hold the career Grand Slam. She is also an Olympic medalist, having won silver in women's singles at the 2012 Summer Olympics in London.
Andre Kirk Agassi is an American retired professional tennis player and former world No. 1 whose career spanned from the late 1980s to the mid-2000s. Considered by numerous sources to be one of the greatest tennis players of all time, Agassi has also been called the 2nd greatest service returner ever to play the game, behind only Novak Djokovic, and was described by the BBC upon his retirement as "perhaps the biggest worldwide star in the sport's history". As a result, he is credited for helping to revive the popularity of tennis during the 1990s.
Anna Sergeyevna Kournikova is a Russian former professional tennis player. Her appearance and celebrity status made her one of the best known tennis stars worldwide. At the peak of her fame, fans looking for images of Kournikova made her name one of the most common search strings on Google Search.