Grand champion Asashoryu continued his march toward a fifth straight Emperor's Cup with a fourth win as ozeki Chiyotaikai and Tochiazuma both suffered shock defeats at the Nagoya Grand Sumo Tournament on Wednesday.

News photoYokozuna Asashoryu pushes top-ranked maegashira Kakizoe out of the ring to improve his record to 4-0 at the Nagoya Grand Sumo Tournament.

Asashoryu barely broke sweat in the day's finale at Aichi Prefectural Gymnasium, blasting out top-ranked maegashira Kakizoe (1-4) with a series of shoves to maintain his unbeaten record.

The Mongolian bruiser, who won the summer tourney with a 15-0 mark and is aiming to become the first wrestler to win five tournaments in a row in almost 20 years, shares the lead with Georgian wrestler Kokkai and Iwakiyama.