Harimoto Tomokazu of Japan reacts during the men's singles semifinal match against Ma Long of China at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Liu Guoliang, president of the Chinese Table Tennis Association, watches the men's singles semifinal match between Ma Long of China and Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

A spectator cheers up Ma Long of China during his men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates during the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates after the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates during the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Harimoto Tomokazu of Japan returns the ball during the men's singles semifinal match against Ma Long of China at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China returns the ball during the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China celebrates during the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Harimoto Tomokazu of Japan reacts during the men's singles semifinal match against Ma Long of China at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Liu Guoliang (L), president of the Chinese Table Tennis Association, watches the men's singles semifinal match between Ma Long of China and Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)

Ma Long of China receives an interview after the men's singles semifinal match against Harimoto Tomokazu of Japan at ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province on June 2, 2019. Ma Long won 4-1. (Xinhua/Wang Dongzhen)