SHANGHAI, CHINA - OCTOBER 18: Novak Djokovic of Serbia returns a shot against Jo-Wilfried Tsonga of France 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)
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