Gold medalist China's Wu Dajing (R) competes during the men's 500m short track speed skating competition at the 2017 Sapporo Asian Winter Games in Sapporo, Japan, Feb. 21, 2017. (Xinhua/Yang Shiyao)
Gold medalist China's Wu Dajing (R) competes during the men's 500m short track speed skating competition at the 2017 Sapporo Asian Winter Games in Sapporo, Japan, Feb. 21, 2017. (Xinhua/Yang Shiyao)