
Bian Ka of China competes during the Women's Shot Put Qualification on Day 5 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 8, 2017. (Xinhua/Wang Lili)

Bian Ka of China competes during the Women's Shot Put Qualification on Day 5 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 8, 2017. (Xinhua/Wang Lili)