Ma Long of China returns the ball during the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Ma Long of China returns the ball during the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Ma Long of China celebrates after the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Harimoto Tomokazu of Japan reacts during the men's singles semifinal match against Ma Long of China at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates during the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates after the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Harimoto Tomokazu of Japan returns the ball during the men's singles semifinal match against Ma Long of China at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Harimoto Tomokazu of Japan returns the ball during the men's singles semifinal match against Ma Long of China at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Harimoto Tomokazu (L) of Japan reacts when Ma Long of China celebrates a score during their men's singles semifinal match at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Ma Long of China returns the ball during the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Ma Long of China celebrates during the men's singles semifinal match against Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Zhu Zheng)

Fan Zhendong of China returns the ball during the men's singles semifinal match against Jang Woojin of South Korea at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Fan Zhendong of China reacts during the men's singles semifinal match against Jang Woojin of South Korea at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)

Chinese Table Tennis Association (CTTA) President Liu Guoliang watches the men's singles semifinal match between Ma Long of China and Harimoto Tomokazu of Japan at 2020 ITTF Men's World Cup in Weihai, east China's Shandong Province, Nov. 15, 2020. (Xinhua/Wang Dongzhen)