SHANGHAI, CHINA - OCTOBER 18:  Jo-Wilfried Tsonga of France reacts during the match against Novak Djokovic of Serbia at the men's singles final match of the Shanghai Rolex Masters at the Qi Zhong Tennis Center on day 8 of Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 18, 2015 in Shanghai, China.  (Photo by Kevin Lee/Getty Images)