Ozeki Tochiazuma's hopes of promotion to yokozuna suffered a fresh blow Saturday after a shock defeat to Miyabiyama on the seventh day of the Spring Grand Tournament.

News photoYokozuna Asashoryu throws down Roho on the seventh day of the Spring Grand Sumo Tournament at Osaka Municipal Gymnasium.

Tochiazuma dropped two wins behind Mongolian grand champion Asashoryu, who gunned down Russian komusubi Roho to retain his share of the lead with countryman Hakuho at 7-0.

Chiyotaikai also suffered a second loss but all may not be lost for troubled ozeki Kaio, who recorded a crucial win over Iwakiyama to improve to 3-4 and ease fears of demotion from sumo's second rank.