
Justin Gatlin of the United States celebrates after winning Men's 100m Final on Day 2 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 5, 2017. Justin Gatlin claimed the title with 9.92 seconds.(Xinhua/Wang Lili)

Justin Gatlin of the United States celebrates after winning Men's 100m Final on Day 2 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 5, 2017. Justin Gatlin claimed the title with 9.92 seconds.(Xinhua/Wang Lili)