Kang Jun (Back) and Liu Cheng of China compete during their Men's Doubles Round 1 match against Takeshi Kamura and Keigo Sonoda of Japan on Day 1 of Li Ning BWF World Championships 2014 at Ballerup Super Arena in Copenhagen, Denmark, on Aug. 25, 2014. Takeshi Kamura and Keigo Sonoda won 2-1. (Xinhua/Wang Lili)
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