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PARIS, FRANCE - MAY 28: Jiri Vesely of Czech Republic plays a backhand during the mens singles first round match against Dusan Lajovic of Serbia during day two of the 2018 French Open at Roland Garros on May 28, 2018 in Paris, France. (Photo by Clive Brunskill/Getty Images)

PARIS, FRANCE - MAY 28:  Jiri Vesely of Czech Republic plays a backhand during the mens singles first round match against Dusan Lajovic of Serbia during day two of the 2018 French Open at Roland Garros on May 28, 2018 in Paris, France.  (Photo by Clive Brunskill/Getty Images)