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Switzerland's Roger Federer reacts during the men's singles third round match against Spain's Roberto Bautista Agut at the Shanghai Masters tennis tournament on Oct. 11, 2018. Roger Federer won 2-1. (Xinhua/Ding Ting)
Switzerland's Roger Federer reacts during the men's singles third round match against Spain's Roberto Bautista Agut at the Shanghai Masters tennis tournament on Oct. 11, 2018. Roger Federer won 2-1. (Xinhua/Ding Ting)