Laslo Djere of Serbia hits a shot during his French Open men's third round match against Kei Nishikori of Japan at Roland Garros in Paris on May 31, 2019. Nishikori defeated Djere 6-4, 7-6 (6), 6-3, 4-6, 8-6 to advance to the fourth round. Photo by David Silpa/UPI