Justin Gatlin of the United States reacts after the men's 100m final on Day Two at the IAAF World Championships 2017 in London, Britain on Aug. 5, 2017. Justin Gatlin claimed the title with 9.92 seconds. (Xinhua/Han Yan)
Justin Gatlin of the United States reacts after the men's 100m final on Day Two at the IAAF World Championships 2017 in London, Britain on Aug. 5, 2017. Justin Gatlin claimed the title with 9.92 seconds. (Xinhua/Han Yan)