Japan's Kiyou Shimizu claimed a silver medal in karate's historic debut at the Tokyo Olympics on Thursday, won by Sandra Sanchez Jaime of Spain in the final matchup of women's kata.At Nippon Budokan, known as the spiritual home of Japanese martial arts, Shimizu scored 27.88 points to finish 0.18 point behind the Spanish reigning world champion in the event in which athletes compete to execute a series of movements more proficiently than their opponents.The bronze medals went to Italy's Viviana Bottaro and Hong Kong's Grace Lau Mo-sheung."I faced a lot of difficulties to reach this point so …READ FULL ARTICLE