France's Gilles Simon grimaces after missing a return during the third round match of the French Open tennis tournament against Canada's Milos Raonic at the Roland Garros stadium, in Paris, France, Friday, May 30, 2014. (AP Photo/Michel Euler)
Canada's Milos Raonic returns the ball to France's Gilles Simon during the third round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Friday, May 30, 2014. (AP Photo/Michel Euler)