China staked its claim as the king of badminton in London on Sunday. The nation's shuttlers completed their second straight clean sweep of the gold medals in the BWF World Badminton Championships, and the highlight match featured China's Lin Dan in another great battle against Malaysia's world number one Lee Chong Wei.

China's Lin Dan celebrates after winning the final of men's singles against Malaysia's Lee Chong Wei in 2011 Badminton World Championships at Wembley Arena, London, Britain, Aug. 14, 2011. Lin Dan won 2-1 to claim the title for the fourth time.

The top stars of the sport dueled at the Beijing Olympics, in 2008, and they met each other again in the men's singles final in Wembley Arena. Lin started the first game slowly, and Lee managed to keep him at bay all the way to the end. The Malaysian won the first game 22-20.

Lin changed his tactics in the 2nd game with a faster, more aggressive style. He bounced back for a 21-14 win and they'd play a decider. The third game went to 19-all. Lin made two faults, but Lee failed to take advantage. Lin Dan clinched the title in dramatic fashion. The 28-year-old won his 4th world championship title in men's singles.

Lin Dan said, "I am very happy, not only that I won the gold, but it also because it was an excellent match between Lee and myself. It was better than when we competed at the Asian Games. I think both of us have made our country's fans proud."