The greatest singles, doubles, and mixed doubles player who has ever lived is arguably tennis legend Martina Navratilova. During a remarkable career that has spanned four decades, Navratilova won an unprecedented 59 Grand Slam titles, including a record 9 Wimbledon singles championships. She was born in Czechoslovakia and came to the United States during the 1975 US Open. Navratilova became a legendary tennis star and even the oldest player to ever win a Grand Slam title, thanks to her dedication to fitness. Fittingly, she has served as a Health and Fitness Ambassador to the American Association of Retired Persons. After undergoing her own personal battle with breast cancer, Navratilova became a spokeswoman for breast cancer awareness. She is a gay rights advocate and remains in the public eye, such as with her debut on Dancing with the Stars.