Rank-and-file wrestler Oho sprang the first big upset of the Kyushu Grand Sumo Tournament on Tuesday as he outmaneuvered ozeki Kotozakura in a battle between two of the sport's thoroughbreds.No. 1 maegashira Oho, the grandson of former yokozuna Taiho, opened his account on Day 3 at Fukuoka Kokusai Center by pushing out Kotozakura, who fights under the same ring name as his own former yokozuna grandfather.Following a mighty collision, Kotozakura (2-1) briefly gained a belt grip before Oho (1-2) broke the hold and shoved the ozeki over the straw bales with a hand to the face and a forearm to …READ FULL ARTICLE