Harumafuji became the first of sumo's top rank to taste defeat when he was sent crashing by rank-and-filer Yoshikaze on the fourth day of the Nagoya Grand Sumo Tournament on Wednesday.

Sumo's two other yokozuna were in razor-sharp form as they shredded their respective opponents.

Hakuho, who is seeking his career 30th championship, Kakuryu and demotion-threatened ozeki Kotoshogiku feature among a group of five wrestlers in the early lead at 4-0. Ozeki Kisenosato sits one off the pace in a logjam of nine at 3-1.