South Korea's Kim Gwanuk (R) competes against Cuba's Reineris Perez Salas during the men's freestyle 86KG 1/8 final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. Kim Gwanuk lost the match. (Xinhua/Wu Wei)
South Korea's Kim Gwanuk (R) competes against Cuba's Reineris Perez Salas during the men's freestyle 86KG 1/8 final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. Kim Gwanuk lost the match. (Xinhua/Wu Wei)