Tennis Champ Breaks Down in Tears in Stunning Defeat

Matthew Stockman/Getty Images Novak Djokovic broke down in tears just before crashing out of the first round of the U.S. Open in a grueling and emotional five-set match. The 24-time Grand Slam champion was defeated 7-6 (7-5), 5-7, 4-6, 6-2, 6-1 by Argentina’s Mariano Navone after being on the court for four hours and 36 minutes. The stunning loss marks the first time that Djokovic, 39, has not progressed beyond a first-round Grand Slam match since 2006, when he was eliminated from the…