
Su Bingtian (1st, R) and Zhang Peimeng (2nd, R) of Team China compete during the men's 4x100m relay final on Day 9 at the IAAF World Championships 2017 in London, Britain on Aug. 12, 2017. (Xinhua/Wang Lili)

Su Bingtian (1st, R) and Zhang Peimeng (2nd, R) of Team China compete during the men's 4x100m relay final on Day 9 at the IAAF World Championships 2017 in London, Britain on Aug. 12, 2017. (Xinhua/Wang Lili)