Rafael Nadal of Spain reacts after defeating Novak Djokovic of Serbia to win the U.S. Open Men's Final in Arthur Ashe Stadium at the U.S. Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on September 9, 2013. Nadal defeated Djokovic 6-2, 3-6, 6-4, 6-1. UPI/John Angelillo