Amelie Mauresmo was the world's top tennis player before she retired. She also came out as a lesbian while at the top of her career-- and never looked back.

Doubles star Casey Dellacqua garnered the spotlight recently after speaking out against tennis legend and fellow Australian Margaret Court.

Icon of the tennis world and the first openly gay athlete, Billie Jean King was able to wave the flag for women's equality by winning a single tennis match.