
Lin Dan of China competes during the men's singles first round match with Kieran Merrilees of Scotland at BWF Badminton World Championships 2017 in Glasgow, Scotland, Britain on Aug. 21, 2017. Lin Dan won 2-0. (Xinhua/Han Yan)

Lin Dan of China competes during the men's singles first round match with Kieran Merrilees of Scotland at BWF Badminton World Championships 2017 in Glasgow, Scotland, Britain on Aug. 21, 2017. Lin Dan won 2-0. (Xinhua/Han Yan)