Sloane Stephens (USA), left, and Serena Williams, also from the USA, shake hands at the conclusion of their match where Williams won in three sets during 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. Williams won 6-4, 6-1. UPI Photo/Monika Graff