James Blake Pictures
NEW YORK, NY - AUGUST 29: Jack Sock and James Blake of the United States of America walk off court following their defeat to Alexander Peya of Austria and Bruno Soares of Brazil on Day Four of the 2013 US Open at USTA Billie Jean King National Tennis Center on August 29, 2013 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)