Legend of tennis in the 1960s and 1970s and activist for gender equality in her sport, American Billie Jean King, 82, believes that Roger Federer could have done more to defend the rights of the players on the women's circuit.
Legend of tennis in the 1960s and 1970s and one of the most important activists for gender equality in sport, Billie Jean King (82) believes that Roger Federer (45) could have done more to promote the rights of female players.