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Argentina's Diego Schwartzman plays a backhand return to Croatia's Borna Coric during their men's singles third round match on day seven of The Roland Garros 2018 French Open tennis tournament in Paris on June 2, 2018. (Photo by Eric FEFERBERG / AFP) (Photo credit should read ERIC FEFERBERG/AFP/Getty Images)

Argentina's Diego Schwartzman plays a backhand return to Croatia's Borna Coric during their men's singles third round match on day seven of The Roland Garros 2018 French Open tennis tournament in Paris on June 2, 2018. (Photo by Eric FEFERBERG / AFP)        (Photo credit should read ERIC FEFERBERG/AFP/Getty Images)