China's Lin Dan celebrates his victory over Malaysia's Lee Chong Wei in the men's singles badminton gold medal match at the 2012 Summer Olympics, Sunday, Aug. 5, 2012, in London. Lin won 15-21, 21-10, 21-19 to repeat his victory over Chong Wei in the Beijing Games final, and claim his sixth Olympic or world title. (AP Photo/Andres Leighton)

Photo by: Andres Leighton

China's Lin Dan celebrates his victory over Malaysia's Lee Chong Wei in the men's singles badminton gold medal match at the 2012 Summer Olympics, Sunday, Aug. 5, 2012, in London. Lin won 15-21, 21-10, 21-19 to repeat his victory over Chong Wei in the Beijing Games final, and claim his sixth Olympic or world title. (AP Photo/Andres Leighton)