New komusubi Onosato handed demotion-threatened "kadoban" ozeki Kirishima his fourth defeat Thursday, the fifth day of the Summer Grand Sumo Tournament, where three maegashira share the lead with 5-0 records.Needing eight wins to remain in sumo's second-highest rank, Kirishima (1-4) quickly seized a left underarm belt hold but enjoyed little advantage against a physically superior Onosato (4-1), who had no trouble grappling the ozeki toward the edge at Tokyo's Ryogoku Kokugikan.While Onosato's feet touched outside the straw bales first as he executed a "yoritaoshi" crush-out, Kirishima by t…READ FULL ARTICLE