Ascendant star Onosato overwhelmed ozeki Hoshoryu to seal his second championship with a day to spare Saturday at the Autumn Grand Sumo Tournament.Having started the penultimate day at Ryogoku Kokugikan with a two-win buffer, the 24-year-old sekiwake improved to an unassailable 13-1, virtually guaranteeing his promotion to ozeki, by pushing out the Mongolian-born grappler.Four other wrestlers -- Kirishima, Wakatakakage, Takayasu and Nishikigi -- began Day 14 in contention at 10-3 and in need of a loss by Onosato to keep their title hopes alive.The 192-centimeter, 182-kilogram Onosato made a…READ FULL ARTICLE