Mongolian grand champion Asashoryu grabbed sole possession of the lead on Saturday after crushing winless Tosanoumi to maintain his unbeaten record on the seventh day of the Nagoya Grand Sumo Tournament.

News photoOzeki Kaio unleashes an arm throw to beat No. 3 maegashira Roho on Saturday at the Nagoya Grand Sumo Tournament in Aichi Prefecture.

The bully from Ulan Bator edged another step closer to becoming the first wrestler in nearly 20 years to win five straight Emperor's Cups and moved into pole position after overnight coleader Iwakiyama was sent out to his first loss at Aichi Prefectural Gymnasium.

Defeated just once this year, Asashoryu knocked fourth-ranked Tosanoumi sideways with a slap after the "tachi-ai" and sent him crumpling to the dirt with an underarm throw for an easy victory.