NEW YORK, NY - AUGUST 31:  Caroline Wozniacki of Denmark celebrates defeating Maria Sharapova of Russia after winning their women's singles fourth round match on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Mike Stobe/Getty Images for USTA)