PARIS, FRANCE - JUNE 02: Kei Nishikori of Japan in action during his men's singles quarterfinals match against Jo-Wilfried Tsonga of France at Roland Garros on June 2, 2015 in Paris, France. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JUNE 02: Kei Nishikori of Japan in action during his men's singles quarterfinals match against Jo-Wilfried Tsonga of France at Roland Garros on June 2, 2015 in Paris, France. (Photo by Aurelien Meunier/Getty Images)