He Kexin of China competes in the women's uneven bars final during the World Gymnastics Championships at the O2 Arena in London, Saturday, Oct. 17, 2009. (AP Photo/Matt Dunham)

LONDON, ENGLAND - OCTOBER 17: Kexin He of China poses with her gold medal after she won the uneven bars event during the Apparatus Finals on the fifth day of the Artistic Gymnastics World Championships 2009 at the O2 Arena on ...

LONDON, ENGLAND - OCTOBER 14: Kexin He of China looks on before she competed in the uneven bars during the second day of the Artistic Gymnastics World Championships 2009 at O2 Arena on October 14, 2009 in London, England. (Photo by ...

090827) -- GUILIN, Aug. 27, 2009 -- Liu Mengyi, one of the laureates with the title of the country's top 10 best self-strong girls, holds high her trophy and certificate of award, during the awarding ceremony for China's Top 10 ...