Martina Navrátilová (September 1956- ) is a former World Number One tennis player. Navratilova played across several “generations” of tennis champions, and still holds records for the most singles titles of any player, the most Wimbledon singles titles (nine), the longest consecutive number of wins (74), the oldest player ever to win a Grand Slam event and the oldest woman ever to win a WTA event.
Navratilova officially retired from professional tennis in September 2006, and now acts as a sports commentator. She supports many charities and is a gay activist, which is of particular note because she acknowledged her sexual orientation at a time when this was a risky thing to do, due to homophobia. She is also the current Health and Fitness ambassador for the American Association of Retired Persons, an advocacy group for persons over 50 years old. Navratilova has written several books, including co-authoring mystery novels.