Gold medalist South Africa's Caster Semenya (C), silver medalist Burundi's Francine Niyonsaba (L), bronze medalist Kenya's Margaret Nyairera Wambui attend the awarding ceremony for the women's 800m final of Athletcis at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. (Xinhua/Liu Bin)
