Grega Zemlja Pictures

  • NEW YORK, NY - AUGUST 27: Grega Zemlja of Slovenia returns a shot to Roger Federer of Switzerland during their first round men's singles match on Day Two of the 2013 US Open at USTA Billie Jean King National Tennis Center on August 27, 2013 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)