
An athlete competes during the men's 3,000m Steeplechase heats on Day 3 at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)

An athlete competes during the men's 3,000m Steeplechase heats on Day 3 at the IAAF World Championships 2017 in London, Britain on Aug. 6, 2017. (Xinhua/Han Yan)