USA's John Isner returns the ball to France's Paul-Henri Mathieu during their 

USA's John Isner returns the ball to France's Paul-Henri Mathieu during their second round match in the French Open tennis tournament at the Roland Garros stadium in Paris, Thursday, May 31, 2012. (AP Photo/Michel Euler)
Associated Press
USA's John Isner returns the ball to France's Paul-Henri Mathieu during their second round match in the French Open tennis tournament at the Roland Garros stadium in Paris, Thursday, May 31, 2012. (AP Photo/Michel Euler)
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