Purity Cherotich Kirui (Front) of Kenya competes during Women's 3000m Steeplechase Final on Day 8 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 11, 2017. Purity Cherotich Kirui ranked tenth with 9 minutes 25.62 seconds. (Xinhua/Wang Lili)
