
Rosangela Santos of Brazil reacts after the women's 100m semi-final on Day 3 at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)

Rosangela Santos of Brazil reacts after the women's 100m semi-final on Day 3 at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)