Silver medalist Russia's Yulia Efimova celebrates after the awarding ceremony of women's 100m breaststroke swimming final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 8, 2016.(Xinhua/Fei Maohua)
Silver medalist Russia's Yulia Efimova celebrates after the awarding ceremony of women's 100m breaststroke swimming final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 8, 2016.(Xinhua/Fei Maohua)