https://www.upi.com/News_Photos/lp/c7db9d6c1c27b824e5df27f068436893/https://www.upi.com/News_Photos/view/upi/c7db9d6c1c27b824e5df27f068436893/US-Open-Tennis-Championships/New York City, Grand Slam, Sports, Tennis, USTA, Athlete, CompetitionUPIUPIhttps://cdnph.upi.com/pv/upi/c7db9d6c1c27b824e5df27f068436893/US-OPEN.jpg
Roger Federer of Switzerland reacts to losing a game to Marin Cilic of Croatia in the first set of their semifinal match of the US Open at the USTA Billie Jean King National Tennis Center in New York City on September 6, 2014. UPI/Monika Graff