![Gatlin stuns Bolt to win 100m world title, Su finishes 8th(4/7)](http://www.ecns.cn/hd/2017/08/06/7e155f8f146d41d1ae5defc1b34d0516.jpg)
Usain Bolt of Jamaica reacts after the men's 100m final during the World Athletics Championships at the London Stadium, London, Britain, Aug 5, 2017. [Photo/Reuters]
Usain Bolt of Jamaica reacts after the men's 100m final during the World Athletics Championships at the London Stadium, London, Britain, Aug 5, 2017. [Photo/Reuters]