Yokozuna Asashoryu will be out to expose Musashimaru as an aging and rusty grand champion when the Nagoya Grand Sumo Tournament kicks off Sunday.

The 22-year-old Mongolian powerhouse will be seeking to claim his second consecutive Emperor's Cup and fourth title overall while his burly Samoan-born counterpart will return to the raised ring after three straight absences still nursing a weakened left wrist.

For Musashimaru, who underwent surgery on his wrist last November for ligament damage, the decision to wrestle at the meet at Aichi Prefectural Gymnasium is more a matter of impatience -- either put up or shut up -- than a realistic shot at capturing his 13th victory.