Nyang James Chiengjiek of Refugee Olympic Team competes during the men's 400m heat at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 12, 2016. (Xinhua/Zheng Huansong)
Nyang James Chiengjiek of Refugee Olympic Team competes during the men's 400m heat at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 12, 2016. (Xinhua/Zheng Huansong)