SOUTH KOREA IAAF ATHLETICS WORLD CHAMPIONSHIPS DAEGU 2011 Dayron Robles ( R ) of Cuba touches with his hand Xiang Liu of China in the 110 m Hurdles final at the 13 th IAAF World Championships in Daegu , Republic of Korea , 29 August 2011 . Though first declared winner of the race , Robles later was disqualified . Winner was Jason Richardson of the US and Xiang Liu second . EPA / JEON HEON - KYUN < 모바일 애플리케이션 > < 포토 매거진 >< 저작권자 ( c ) 연합뉴스 . 무단 전재 - 재배 포금 지 . >