
Aries Merritt(1st L) of the United States competes during the men's 110m hurdles heats match at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)
Aries Merritt(1st L) of the United States competes during the men's 110m hurdles heats match at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)