
Chijindu Ujah of Britain celebrates after the men's 100m final at the IAAF Diamond League international athletics meeting in Zurich, Switzerland, August 24, 2017. Ujah claimed the title with 9.97 seconds. (Xinhua/Michele Limina)

Chijindu Ujah of Britain celebrates after the men's 100m final at the IAAF Diamond League international athletics meeting in Zurich, Switzerland, August 24, 2017. Ujah claimed the title with 9.97 seconds. (Xinhua/Michele Limina)