Cuba's Dayron Robles, left, and China's Liu Xiang compete in a 110m Hurdles semifinal at the World Athletics Championships in Daegu, South Korea, Monday, Aug. 29, 2011. Liu placed first, followed by ... more 
Cuba's Dayron Robles, left, and China's Liu Xiang compete in a 110m Hurdles semifinal at the World Athletics Championships in Daegu, South Korea, Monday, Aug. 29, 2011. Liu placed first, followed by Robles and Merritt. (AP Photo/Anja Niedringhaus) less 
1 / 1
Associated Press | Photo By Anja Niedringhaus
Mon, Aug 29, 2011 6:11 AM EDT