China's Xu Chen (R) and his partner Ma Jin celebrate after winning their mixed doubles match against South Korea's Kim Ha-na and Ko Sung-hyun at the finals of the Sudirman Cup World Team Badminton Championships in Kuala Lumpur May 26, 2013. [Photo/Agencies]

China's Chen Long smashes against South Korea's Lee Dong-keun during their men's singles match at the finals of the Sudirman Cup World Team Badminton Championships in Kuala Lumpur May 26, 2013. [Photo/Agencies]