NEW YORK, NY - SEPTEMBER 07:  Serena Williams of the United States celebrates with the trophy after defeating Caroline Wozniacki of Denmark to win their women's singles final match on Day fourteen of the 2014 US Open at the USTA Billie Jean King National Tennis Center on September 7, 2014 in the Flushing neighborhood of the Queens borough of New York City. Williams defeated Wozniacki in two sets by a score of 6-3, 6-3.  (Photo by Matthew Stockman/Getty Images)