Rising talent Hakuoho made a sensational start to the 15-day Kyushu Grand Sumo Tournament by upsetting yokozuna Hoshoryu at Fukuoka Kokusai Center on Sunday.Fellow yokozuna Onosato, meanwhile, had no problem taking care of veteran komusubi Takayasu in the final bout of the opening day.Hoshoryu, coming off his victory in last month's five-day exhibition tournament in London, could not respond in time after losing the opening collision to 22-year-old Hakuoho, fighting at a career-high ranking of No. 1 maegashira.Driven back to the straw bales, the Mongolian-born grand champion maneuvered for …READ FULL ARTICLE