NEW YORK, NY - AUGUST 28: Catherine "CiCi' Bellis of the United States returns a shot against Zarina Diyas of Kazakhstan during their women's singles second round match on Day Four of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2014 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
