Grand champion Asashoryu extended his perfect record at the Summer Grand Sumo Tournament on Tuesday, winning his third bout of the 15-day tournament.

Fighting in the final round at Tokyo's Ryogoku Kokugikan, the Mongolian yokozuna grabbed the left leg of top maegashira Tochinonada just as the opponent lost balance, and toppled him.

Asashoryu (3-0) marked 33 straight wins Tuesday, extending the record he set earlier this week when he surpassed the 10-year mark of 30 consecutive victories by yokozuna Takanohana. Asashoryu is the overwhelming favorite to win the summer tournament.