John Isner, of the United States, reacts after defeating Milos Raonic, of Canada, 6-7 (3), 7-6 (6), 7-6 (5) during the Miami Open early Wednesday, April 1, 2015, in Key Biscayne, Fla.
John Isner, of the United States, reacts after defeating Milos Raonic, of Canada, 6-7 (3), 7-6 (6), 7-6 (5) during the Miami Open early Wednesday, April 1, 2015, in Key Biscayne, Fla. Luis M. Alvarez AP
John Isner, of the United States, reacts after defeating Milos Raonic, of Canada, 6-7 (3), 7-6 (6), 7-6 (5) during the Miami Open early Wednesday, April 1, 2015, in Key Biscayne, Fla. Luis M. Alvarez AP