
Ma Long of China celebrates during the men's singles match against Chuang Chih-Yuan of Chinese Taipei at the 2017 World Table Tennis Championships in Dusseldorf, Germany on June 3, 2017. Ma Long won 4-0. (Xinhua/Luo Huanhuan)

Ma Long of China celebrates during the men's singles match against Chuang Chih-Yuan of Chinese Taipei at the 2017 World Table Tennis Championships in Dusseldorf, Germany on June 3, 2017. Ma Long won 4-0. (Xinhua/Luo Huanhuan)