Lone yokozuna Terunofuji decided Friday to sit out the impending Spring Grand Sumo Tournament in order to continue his recovery from knee surgery.The absence of the Mongolian-born grand champion from a fourth consecutive grand tournament will leave ozeki Takakeisho as the highest-ranked wrestler when the 15-day competition opens Sunday at Edion Arena Osaka.The injury-prone Terunofuji will have missed all or part of 16 tournaments for his career, including five of the 10 since his promotion to the sport's highest rank.The 31-year-old winner of seven top-division titles had endoscopic surgery…READ FULL ARTICLE