Gustavo Kuerten
“Guga” is now a retired former World No. 1 from Brazil. He has won the French Open singles title a total of three times (1997, 2000, and 2001), and was also the Tennis Masters Cup champion in 2000. However, Kuerten suffered numerous injuries, leading him to miss a number of tournaments in the years between 2002 and 2005. After a few failed comebacks, he officially retired in May 2008, in his career he has won 20 singles and 8 doubles titles.
Roger Federer
Roger Federer is synonymous with the word, tennis. This male athlete is no joke. He started his professional career in 1998 and so far, he’s earned over 98 million dollars in his 18 year long career! Plus, he has 88 career titles along with 17 Grand Slam Singles Titles: 4 Australian, 1 French, 5 US Open, and 7 Wimbledon. On top of all that, oh yeah, we’re not done listing his achievements. From 2004 to 2008, Federer was ranked number one in the world for 237 consecutive weeks, a record that may never be surpassed.