Gael Monfils, of France, reacts after a shot against Grigor Dimitrov, of Bulgaria, during the fourth round of the 2014 U.S. Open tennis tournament, Tuesday, Sept. 2, 2014, in New York. (AP Photo/Mike Groll)
Gael Monfils, of France, reacts after a shot against Grigor Dimitrov, of Bulgaria, during the fourth round of the 2014 U.S. Open tennis tournament, Tuesday, Sept. 2, 2014, in New York. (AP Photo/Mike Groll)