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PARIS, FRANCE - MAY 25: A worker clears clay dust from the court lines on day two of the 2015 French Open at Roland Garros on May 25, 2015 in Paris, France. (Photo by Clive Brunskill/Getty Images)

PARIS, FRANCE - MAY 25: A worker clears clay dust from the court lines on day two of the 2015 French Open at Roland Garros on May 25, 2015 in Paris, France.  (Photo by Clive Brunskill/Getty Images)