Yokozuna Hakuho was all business against Shohozan on the second day of the Nagoya Grand Sumo Tournament Monday, edging closer in his bid to become only the third man in history to capture his 30th career championship.

Disaster, however, struck for Kisenosato when he was brought down like a ton of bricks for a first loss by technician Aminishiki, who had to wait for a judges' ringside conference before being awarded the "gumbai" after it appeared he might have been disqualified for pulling his opponent's topknot.

Sumo's two other yokozuna, Harumafuji and Kakuryu, also came through unscathed to improve to 2-0 with dominant displays against Ikioi (0-2) and Aoiyama (0-2), respectively, at the 15-day meet at Aichi Prefectural Gymnasium.