Russia's Margarita Mamun competes during the individual all-around final of Rhythmic Gymnastics at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. Margarita Mamun won the gold medal. (Xinhua/Ren Zhenglai)
Russia's Margarita Mamun competes during the individual all-around final of Rhythmic Gymnastics at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. Margarita Mamun won the gold medal. (Xinhua/Ren Zhenglai)