Japan's Risako Kawai captured the gold medal Thursday by beating Belarus's Iryna Kurachkina 5-0 in the women's 57-kilogram wrestling final at the Tokyo Olympics.The 26-year-old Kawai, freestyle champion at 63 kg at the 2016 Rio de Janeiro Games, became the third Japanese female wrestler to win back-to-back Olympic titles, following Kaori Icho, who had four straight titles and Saori Yoshida, who won three consecutive gold medal, respectively, from the 2004 Athens Games.On Wednesday, Kawai's younger sister, 23-year-old Yukako, won the women's 62-kg title, making them the first Japanese sister…READ FULL ARTICLE