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MONTE-CARLO, MONACO - APRIL 13: Paolo Lorenzi of Italy stretches for a forehand during his second round match against Gael Monfils of France on day four of the Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 13, 2016 in Monte-Carlo, Monaco. (Photo by Michael Steele/Getty Images)

MONTE-CARLO, MONACO - APRIL 13:  Paolo Lorenzi of Italy stretches for a forehand during his second round match against Gael Monfils of France on day four of the Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 13, 2016 in Monte-Carlo, Monaco.  (Photo by Michael Steele/Getty Images)