Jeoung Youngsik of South Korea serves during the men's singles semifinal match against Ma Long of China at the Qatar 2016 ITTF World Tour Grand Finals in Doha, Qatar, on Dec. 10, 2016. (Xinhua/Nikku)
Jeoung Youngsik of South Korea serves during the men's singles semifinal match against Ma Long of China at the Qatar 2016 ITTF World Tour Grand Finals in Doha, Qatar, on Dec. 10, 2016. (Xinhua/Nikku)