OSAKA, Mar. 14. - Two major upsets highlighted the ninth day of Grand Spring Professional Sumo Tourney when two undefeated "Sekiwake" grapplers - Ouchiyama, 6 feet 7, 316 pounds, and Wakanohana, 5 feet 9, 208 pounds - bit the dirt in two consecutive bouts at the Osaka Prefectural Gymnasium, Namba, Monday.
    In the first big card of the day, popular Asashio, 6 feet 3, 278 pounds, with a fine 6-2 record smashed square against Wakanohana and toppled him after a heated tussle.
    A few minutes later the fans went wild with excitement as Ouchiyama suffered his first setback at the hands of Shinobuyama, 5 feet 8, 216 pounds, in a short breathtaking contest.
    Grand Champion Chiyonoyama maintained his perfect record, defeating Tokitsuyama, 5 feet 9, 279 pounds, in a convincing performance.
    Another pot-bellied Grand Champion, Kagamisato, who has been in poor shape in the current tourney with four wins and four defeats was absent from the ring due to acute nephritis.
    Meanwhile, Juryo ranking Bishyuzan, 35, Monday announced his retirement from the ring.