PARIS, FRANCE - MAY 25: Kei Nishikori of Japan serves during the Men's Singles second round match against Andrey Kuznetsov of Russia at Roland Garros on May 25, 2016 in Paris, France. (Photo by Dennis Grombkowski/Getty Images)
PARIS, FRANCE - MAY 25: Kei Nishikori of Japan serves during the Men's Singles second round match against Andrey Kuznetsov of Russia at Roland Garros on May 25, 2016 in Paris, France. (Photo by Dennis Grombkowski/Getty Images)