China's Zheng Bo (L) and Yu Yang celebrate after winning the mixed doubles game against South Korea's Lee Yong-Dae and Lee Hyo-Jung in the Sudirman Cup World Mixed Team Badminton Championships fianl in Guangzhou of south China May 17, 2009. Defending China swept South Korea in the best-of-five match to claim the title for the third consecutive times. [Xinhua]