
Nafissatou Thiam of Belgium celebrates with Carolin Schafer of Germany after winning Women's Heptathlon on Day 3 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 6, 2017. (Xinhua/Wang Lili)

Nafissatou Thiam of Belgium celebrates with Carolin Schafer of Germany after winning Women's Heptathlon on Day 3 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 6, 2017. (Xinhua/Wang Lili)