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PARIS, FRANCE - MAY 24: Steve Johnson of the United States celebrates a point in his Men's Singles match against Guillermo Garcia-Lopez of Spain on day one of the 2015 French Open at Roland Garros on May 24, 2015 in Paris, France. (Photo by Julian Finney/Getty Images)

PARIS, FRANCE - MAY 24:  Steve Johnson of the United States celebrates a point in his Men's Singles match against Guillermo Garcia-Lopez of Spain on day one of the 2015 French Open at Roland Garros on May 24, 2015 in Paris, France.  (Photo by Julian Finney/Getty Images)