Novak Djokovic defeats Roger Federer in semifinal match at the U.S. Open in New York

Novak Djokovic of Serbia, first seed, celebrates his win over Roger Federer of Switzerland, third seed, after five sets of play during their semifinal match at the U.S. Open held at the National Tennis Center on September 10, 2011 in New York. Djokovic won 6-7, 4-6, 6-3, 6-2, 7-5. UPI/Monika Graff