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Spain's Rafael Nadal waves to the crowd after winning the men's first round match against Australia's Samuel Groth at the Roland Garros 2016 French Tennis Open in Paris on May 24, 2016. / AFP / MIGUEL MEDINA (Photo credit should read MIGUEL MEDINA/AFP/Getty Images)

Spain's Rafael Nadal waves to the crowd after winning the men's first round match against Australia's Samuel Groth at the Roland Garros 2016 French Tennis Open in Paris on May 24, 2016. / AFP / MIGUEL MEDINA        (Photo credit should read MIGUEL MEDINA/AFP/Getty Images)