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Serena Williams of the U.S. celebrates winning a point against Carla Suarez Navarro of Spain at the end of their match at the Madrid Open tennis tournament in Madrid, Spain

Serena Williams of the U.S. celebrates winning a point against Carla Suarez Navarro of Spain at the end of their match at the Madrid Open tennis tournament in Madrid, Spain, May 7, 2015. REUTERS/Andrea Comas

Serena & Venus Williams at the Olympics

5 August 2012

Williams sisters Venus and Serena compete for gold at the All-England Club in London during the Olympics.