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Ma Long of China celebrates during the men's singles semifinal match against his compatriot Xu Xin at the 2019 ITTF World Tour Grand Finals in Zhengzhou, central China's Henan Province, Dec. 14, 2019. (Xinhua/Hao Yuan)
Ma Long of China celebrates during the men's singles semifinal match against his compatriot Xu Xin at the 2019 ITTF World Tour Grand Finals in Zhengzhou, central China's Henan Province, Dec. 14, 2019. (Xinhua/Hao Yuan)