Tommy Robredo Pictures
NEW YORK, NY - SEPTEMBER 02: A general view of Louis Armstrong Stadium backdropped by Arthur Ashe Stadium as Roger Federer of Switzerland faces Tommy Robredo of Spain during their fourth round men's singles match on Day Eight of the 2013 US Open at the USTA Billie Jean King National Tennis Center on September 2, 2013 in New York City. (Photo by Chris Trotman/Getty Images for the USTA)