Yokozuna Asashoryu kicked off 2006 with a routine win, but Bulgarian bulldozer Kotooshu made a nightmare start on his ozeki debut after a shock loss to Roho on the opening day of the New Year Grand Sumo Tournament on Sunday.

News photoRoho flips ozeki Kotooshu to the ground on the opening day of the New Year Grand Sumo Tournament at Tokyo's Ryogoku Kokugikan.

Asashoryu, who won all six titles last year, continued where he left off in 2005, making mincemeat out of Tamanoshima, but Kaio was defeated at the hands of Miyabiyama in another upset for ozeki at Tokyo's Ryogoku Kokugikan.