Happy birthday to Martina Navratilova, arguably the greatest all-around tennis player of all time. Navratilova has won 18 Grand Slam singles titles, 31 Grand Slam women's doubles titles, and 12 Grand Slam mixed doubles titles. She holds a record 9 Wimbledon singles titles and is the only tennis player, man or woman, to have won 8 different tournaments 7 or more times.
