Video PlayerClose

Su Bingtian (L) of China reacts after the men's 100m heat at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 27, 2019. (Xinhua/Li Gang)

Su Bingtian (L) of China reacts after the men's 100m heat at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 27, 2019. (Xinhua/Li Gang)