China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS TPX IMAGES OF THE DAY)

China's Deng Linlin (C) celebrates winning a gold medal in the women's gymnastics balance beam victory ceremony with silver medallist China's Sui Lu and bronze medallist Alexandra Raisman (R) of the U.S. in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin (C) celebrates winning a gold medal in the women's gymnastics balance beam victory ceremony with silver medallist China's Sui Lu and bronze medallist Alexandra Raisman (R) of the U.S. in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin celebrates winning a gold medal in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin celebrates winning a gold medal in the women's gymnastics balance beam victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin celebrates winning a gold medal in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin bites her gold medal in the women's gymnastics balance beam victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin celebrates winning a gold medal in the women's gymnastics balance beam victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

From L-R, bronze medal winner Alexandra Raisman of the U.S., gold medal winner China's Deng Linlin and silver medal winner China's Sui Lu celebrate in the women's gymnastics balance beam victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin celebrates winning a gold medal in the women's gymnastics balance beam victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Alexandra Raisman of the U.S. (C) is embraced by a coach (L), as China's Deng Linlin looks up to the results board, after the result of the enquiry was announced in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS TPX IMAGES OF THE DAY)

From L-R, China's Deng Linlin, Alexandra Raisman of the U.S. and China's Sui Lu wait for the result of the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin is hugged by a team mate after competing in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

China's Deng Linlin reacts after competing in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the women's gymnastics balance beam final in the North Greenwich Arena during the London 2012 Olympic Games August 7, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

China's Deng Linlin competes in the floor exercise during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the balance beam during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Phil Noble (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs her floor exercise during the women's individual all-around gymnastics final in the North Greenwich Arena at the London 2012 Olympic Games August 2, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the balance beam during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the balance beam during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin competes in the balance beam during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the balance beam during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the asymmetric bars during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin competes in the vault during the women's individual all-around gymnastics final in the North Greenwich Arena during the London 2012 Olympic Games August 2, 2012. REUTERS/Phil Noble (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin stumbles during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Adrees Latif (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs her floor exercise during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Adrees Latif (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin falls from the balance beam during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's gymnastics team members, from L-R, Yao Jinnan, Deng Linlin, Huang Qiushuang and He Kexin react after their performances in the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Yao Jinnan (L) is embraced by teammate Deng Linlin during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Deng Linlin of China competes in the vault during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Deng Linlin performs on the balance beam during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the balance beam during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin loses her balance on the balance beam during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the balance beam during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

China's Deng Linlin performs on the balance beam during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS TPX IMAGES OF THE DAY)

Deng Linlin of China competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China competes in the balance beam during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China competes in the balance beam during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China practices during a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China practices during a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China practices with her coach during a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Deng Linlin of China attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

China's Sui Lu (C) stands with her gold medal after the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. China's Deng Linlin received silver and Uzbekistan's Luiza Galiulina (R) bronze. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Sui Lu (C) stands with her gold medal after the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. China's Deng Linlin received silver and Uzbekistan's Luiza Galiulina (R) bronze. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Deng Linlin waits for her score after the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. Deng received the silver medal. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Deng Linlin competes in the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. Deng received the silver medal. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Deng Linlin competes in the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. Deng received the silver medal. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Deng Linlin competes in the women's balance beam final during artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 17, 2010. Deng received the silver medal. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS) 

China's Deng Linlin performs a routine on the balance beam during the women's artistic gymnastics at the 16th Asian Games in Guangzhou, Guangdong province, November 14, 2010. REUTERS/Carlos Barria (CHINA - Tags: SPORT GYMNASTICS)