
Dafne Schippers(1st R) of the Netherlands competes during the women's 100m heat on Day 2 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 5, 2017. (Xinhua/Han Yan)

Dafne Schippers(1st R) of the Netherlands competes during the women's 100m heat on Day 2 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 5, 2017. (Xinhua/Han Yan)