Kei Nishikori of Japan can't return a ball to Marin Cilic of Croatia in the Men's Final in Arthur Ashe Stadium at the US Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on September 8, 2014. Cilic defeated Nishikori 6-3, 6-3, 6-3 to win his first US Open Championship. UPI/John Angelillo