The WTA legend who Serena Williams named as her toughest ever opponent(01)

The WTA legend who Serena Williams named as her toughest ever opponent(01)


Image gallery: Serena Williams Found Her Toughest Tennis Opponent Yet Herself

Serena Williams Meets Her Toughest Tennis Opponent Yet in Cute Video The WTA legend who Serena Williams named as her toughest ever opponent The WTA legend who Serena Williams named as her toughest ever opponent Serena Williams Remains Her Toughest Opponent at Wimbledon "Serena Williams Reveals the WTA Legend Who Was Her Toughest Opponent