Serena Williams vs Sloane Stephens at the U.S. Open in New York

Serena Williams vs Sloane Stephens at the U.S. Open in New York

Top seed Serena Williams (USA) serves to Sloane Stephens, also from the USA, in the first set of fourth-round action at the U.S. Open Championship held at the USTA Billie Jean King National Tennis Center on September 1, 2013 in New York City. UPI Photo/Monika Graff

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