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PARIS, FRANCE - MAY 27: Ivo Karlovic of Croatia hits a forehand during the Men's Singles third round match against Andy Murray of Great Britain on day six of the 2016 French Open at Roland Garros on May 27, 2016 in Paris, France. (Photo by Dennis Grombkowski/Getty Images)

PARIS, FRANCE - MAY 27:  Ivo Karlovic of Croatia hits a forehand during the Men's Singles third round match against Andy Murray of Great Britain on day six of the 2016 French Open at Roland Garros on May 27, 2016 in Paris, France.  (Photo by Dennis Grombkowski/Getty Images)