Billie Jean King played tennis.
Billie Jean King ( née Moffitt ; born November 22 , 1943 ) is an American former World No. 1 professional tennis player . King won 39 Grand Slam titles : 12 in singles , 16 in women 's doubles , and 11 in mixed doubles . Regarded by many in the sport as one of the greatest tennis players of all time , King was inducted into the International Tennis Hall of Fame in 1987 .