Onosato made a solid start to his yokozuna career, while fellow grand champion Hoshoryu overcame one of his most troublesome opponents Sunday as the Nagoya Grand Sumo Tournament opened at IG Arena.The 25-year-old Onosato, the first Japanese-born yokozuna since the January 2019 retirement of his stablemaster, the former Kisenosato, comfortably took care of new Mongolian komusubi Oshoma in the day's penultimate bout.Hoshoryu then brought the opening day to a close by toppling veteran former ozeki Takayasu, winner of 10 of their 12 head-to-head battles coming into the 15-day tournament.Onosato…READ FULL ARTICLE