With their gold medals, Risako, 26, and Yukako, 23, become the first Japanese sisters to have both won gold in the Olympics.
Wrestler Yukako Kawai triumphs in the women’s freestyle 62-kg final, winning the same division that her older sister Risako did at the 2016 Rio Games.
Sisters Risako and Yukako Kawai will be among those looking to carry on Japan's winning tradition in the ring.