Sumo's sole grand champion Hakuho, who withdrew from the recent Spring Grand Tournament with a knee injury, will remain subject to a stern warning over his repeated absences from competition, the sport's governing body decided Monday.At a regular meeting in Tokyo, the Japan Sumo Association's yokozuna advisory body chose to uphold the warning it originally issued last November to Hakuho and fellow Mongolian-born grand champion Kakuryu, who has since retired.The JSA agreed to make a final decision on the matter after the July grand tournament, which Hakuho has circled for his comeback follow…READ FULL ARTICLE