China's Lin Dan celebrates after winning the men's singles final against Lee Chong Wei of Malaysia at the Malaysia Open Badminton Tournament in Kuching, Malaysia, April 9, 2017. Lin Dan won 2-0 and claim the title. (Xinhua/Chong Voon Chung)

China's Lin Dan celebrates after winning the men's singles final against Lee Chong Wei of Malaysia at the Malaysia Open Badminton Tournament in Kuching, Malaysia, April 9, 2017. Lin Dan won 2-0 and claim the title. (Xinhua/Chong Voon Chung)

Lee Chong Wei of Malaysia returns the shuttlecock during the men's singles final against China's Lin Dan at the Malaysia Open Badminton Tournament in Kuching, Malaysia, April 9, 2017. Lin Dan won 2-0 and claim the title. (Xinhua/Chong Voon Chung)

China's Lin Dan (R) and Lee Chong Wei of Malaysia pose for photos after the men's singles final at the Malaysia Open Badminton Tournament in Kuching, Malaysia, April 9, 2017. Lin beat Lee 2-0 and claim the title. (Xinhua/Chong Voon Chung)

China's Lin Dan returns the shuttlecock during the men's singles final against Lee Chong Wei of Malaysia at the Malaysia Open Badminton Tournament in Kuching, Malaysia, April 9, 2017. Lin Dan won 2-0 and claim the title. (Xinhua/Chong Voon Chung)