Martina Navratilova is a retired Czech and American tennis player and coach. Billie Jean King, former World No. 1 player, said in 2006 that Navratilova is "the greatest singles, doubles and mixed doubles player who's ever lived." In 2005, Tennis magazine selected her as the greatest female tennis player for the years 1965 through 2005. Tennis historian and journalist Bud Collins has called Navratilova "arguably, the greatest tennis player of all time." Navratilova was World No. 1 for a total of 332 weeks in singles, and a record 237 weeks in doubles, making her the only player in history to have held the top spot in both singles and doubles for over 200 weeks. She was year-end singles No. 1 seven times, including a record five consecutive years, as well as year-end doubles No. 1 five times, including three consecutive years during which she held the ranking for the entire year. She won 18 Grand Slam singles titles, 31 major women's doubles titles, and 10 major mixed doubles titles. [More at Wikipedia]

October 18th, 1956 in Prague (Age 66)