Yokozuna Kisenosato tasted his first defeat of the Autumn Grand Sumo Tournament on Friday, losing in an upset to No. 2 maegashira Chiyotairyu.The other two grand champions, Hakuho and Kakuryu, remained undefeated, while ozeki Takayasu also maintained a perfect record on the sixth day of the 15-day tournament at Ryogoku Kokugikan.Seeking a quick result following a run of energy-sapping victories, Japanese grand champion Kisenosato charged his opponent from the jump in the final bout of the day.Chiyotairyu (1-5) sidestepped the yokozuna, however, slipping to his left before pushing him out.Ha…READ FULL ARTICLE