Re-promoted ozeki Kirishima secured his seventh straight win to stay perfect at the Summer Grand Sumo Tournament on Saturday, while ozeki Kotozakura continued his poor start with a fifth defeat.Spring meet champion Kirishima (7-0) remained sharp on the raised ring at Tokyo's Ryogoku Kokugikan as the ozeki dealt with some strong drives from Daieisho (2-5) before he forced the No. 4 maegashira backward and out.Kotozakura (2-5) suffered his third straight defeat at the hands of Oho (3-4). The No. 3 maegashira gained ground from the opening clash and while Kotozakura grabbed a right overarm bel…READ FULL ARTICLE