Alison Riske Pictures

  • NEW YORK, NY - AUGUST 31: Alison Riske of the United States returns a shot to Petra Kvitova of the Czech Republic during their women's singles third round match against on Day Six of the 2013 US Open at USTA Billie Jean King National Tennis Center on August 31, 2013 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Trautwig/Getty Images)