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PARIS, FRANCE - SEPTEMBER 28: Jan-Lennard Struff of Germany plays a backhand during his Men's Singles first round match against Frances Tiafoe of the United States on day two of the 2020 French Open at Roland Garros on September 28, 2020 in Paris, France. (Photo by Clive Brunskill/Getty Images)

PARIS, FRANCE - SEPTEMBER 28: Jan-Lennard Struff of Germany plays a backhand during his Men's Singles first round match against Frances Tiafoe of the United States on day two of the 2020 French Open at Roland Garros on September 28, 2020 in Paris, France. (Photo by Clive Brunskill/Getty Images)