Wayde Van Niekerk (L) of South Africa shakes hands with Ramil Guliyev of Turkey after Men's 200m Final on Day 7 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 10, 2017. Wayde Van Niekerk took the silver medal with 20.11 seconds. (Xinhua/Luo Huanhuan)
