Billie Jean King of the United States in action on Centre Court at Wimbledon, circa July 1970. King lost to Margaret Court of Australia in the Women's Singles Final 14-12, 11-9, but won the Women's Doubles Final with Rosie Casals, defeating Francoise Durr of France and Virginia Wade of Great Britain 6-2, 6-3. (Photo by Ed Lacey/Popperfoto via Getty Images/Getty Images)