Hakuho and Harumafuji will face off in a winner-takes-all bout on the final day of the Nagoya Grand Sumo Tournament.
Hakuho made ozeki rival Kisenosato pay for his overzealousness, and Harumafuji outfoxed Bulgarian Kotooshu Saturday to both improve to 14-0, setting up a decisive clash for Sunday.
It is the first time since the 1983 Nagoya Basho that two undefeated wrestlers will meet on the final day of regulation to decide the championship.