Su Bingtian, second left, of China competes during men's 100m semifinal of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug 5, 2017. China's Su Bingtian, who became the first Chinese to run a 100m final in the World Championships two years ago in Beijing, finished the eighth with 10.27 seconds after booking a berth as the lucky third finisher in heat 2 in 10.10. [Photo/Xinhua]