BWF World Championships: Lin Dan beats 2-0 Sattawat Pongnairat (4/8)

Lin Dan of China returns a shot during the men's singles 1st round match against Sattawat Pongnairat of the United States at the 2013 BWF World Championships on Aug. 5, 2013. Lin won 2-0. (Xinhua/Mao Siqian)