NEW YORK, NY - AUGUST 30: Aleksandra Krunic of Serbia returns a shot against Petra Kvitova of the Czech Republic during their women's singles third round match on Day Six of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2014 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)
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