
Ning Zetao (R) of Henan competes during the men's 50m freestyle swimming final at 13th Chinese National Games in north China's Tianjin Municipality, Sept. 6, 2017. Ning Zetao claimed the title with 22.04 seconds.(Xinhua/Ding Xu)

Ning Zetao (R) of Henan competes during the men's 50m freestyle swimming final at 13th Chinese National Games in north China's Tianjin Municipality, Sept. 6, 2017. Ning Zetao claimed the title with 22.04 seconds.(Xinhua/Ding Xu)