Juan Martin Del Potro of Argentina stretches to return to Marin Cilic of Croatia at the Paris Masters men's singles tennis tournament at the Palais Omnisports of Bercy in Paris, October 30, 2013. ... more 
Juan Martin Del Potro of Argentina stretches to return to Marin Cilic of Croatia at the Paris Masters men's singles tennis tournament at the Palais Omnisports of Bercy in Paris, October 30, 2013. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) less 
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Reuters | Photo By CHARLES PLATIAU / REUTERS
Wed, Oct 30, 2013 2:06 PM EDT