
Tian Houwei of China celebrates after the men's singles first round match against Hans-Kristian Vittinghus of Denmark at the BWF Badminton World Championships in Glasgow, Britain, on Aug. 22, 2017. Tian Houwei won 2-1. (Xinhua/Shan Yuqi)

Tian Houwei of China celebrates after the men's singles first round match against Hans-Kristian Vittinghus of Denmark at the BWF Badminton World Championships in Glasgow, Britain, on Aug. 22, 2017. Tian Houwei won 2-1. (Xinhua/Shan Yuqi)