Gold medalist Arthur Nabarrete Zanetti of Brazil (C), silver medalist Chen Yibing of China (L) and bronze medalist Matteo Morandi of Italy attend victory ceremony of men's rings contest of Gymnastics Artistic event, at London 2012 Olympic Games in London, Britain, on August 6, 2012. (Xinhua/Cheng Min)

Special Report: London Olympics 2012

Chen Yibing of China competes during men's rings final contest of Gymnastics Artistic event, at London 2012 Olympic Games in London, Britain, on August 6, 2012. Chen Yibing of China won silver medal. (Xinhua/Shen Bohan)

Chen Yibing of China holds a banner after competing in men's rings final contest of Gymnastics Artistic event, at London 2012 Olympic Games in London, Britain, on August 6, 2012. Chen Yibing of China won silver medal. (Xinhua/Shen Bohan)

Chen Yibing of China competes during men's rings final contest of Gymnastics Artistic event, at London 2012 Olympic Games in London, Britain, on August 6, 2012. Chen Yibing of China won silver medal. (Xinhua/Fan Jun)

Chen Yibing of China competes during men's rings final contest of Gymnastics Artistic event, at London 2012 Olympic Games in London, Britain, on August 6, 2012. Chen Yibing of China won silver medal. (Xinhua/Fan Jun)