Roger Federer and Juan Martin Del Potro meet in the Men's Singles Final at the US Open Tennis Championships in New York

Juan Martin Del Potro of Argentina reacts while Roger Federer of Switzerland packs his bag after the mens final in Arthur Ashe Stadium at the US Open Tennis Championships at the Billie Jean King National Tennis Center in New York on September 14, 2009. defeated Federer 3-6, 7-6 (5), 4-6, 7-6 (4), 6-2. UPI/John Angelillo