Chinese hurdler Liu Xiang (L) reacts in a training session in Shanghai, Sept. 23, 2008. This is Liu's first public training after he pulled out of the men's 110 meters hurdles because of injuries in Beijing Olympic Games on Aug. 18, 2008. [Xinhua] 

 Chinese hurdler Liu Xiang stretches in a training session in Shanghai, Sept. 23, 2008. This is Liu's first public training after he pulled out of the men's 110 meters hurdles because of injuries in Beijing Olympic Games on Aug. 18, 2008. [Xinhua]

 Chinese hurdler Liu Xiang takes part in a training session in Shanghai, Sept. 23, 2008. This is Liu's first public training after he pulled out of the men's 110 meters hurdles because of injuries in Beijing Olympic Games on Aug. 18, 2008. [Xinhua]