China's Liu Xiang, left, and Terrence Trammell of US competes on the Men's 110m Hurdles at the 2009 Shanghai Golden Grand Prix, an international field and track event at the Shanghai Stadium in Shanghai, China, Sunday, Sept. 20, 2009. AP Photo logo AP Photo 2 months ago

China's Liu Xiang, left, and Terrence Trammell of US competes on the Men's 110m Hurdles at the 2009 Shanghai Golden Grand Prix, an international field and track event at the Shanghai Stadium in Shanghai, China, Sunday, Sept. 20, 2009.