SYDNEY, Australia -- Kostya Tszyu called off a Feb. 7 title fight against Sharmba Mitchell in Moscow, citing a shoulder injury.

Tszyu, an Australian who was born in Russia, partially ruptured a tendon during training Tuesday, his management team said Friday.

Tszyu's promoter, Vlad Warton, said he expects the bout to be rescheduled. The rematch was for Tszyu's WBC and WBA super lightweight titles and IBF junior welterweight crown.

The 34-year-old Tszyu has fought only twice in the past 26 months since his unification title victory over Zab Judah. His only fight last year was in January. He needed surgery on an Achilles' tendon injury and spent much of the year in rehabilitation.

Mitchell, of Takoma Park, Md., lost to Tszyu in Las Vegas in February 2001. They were scheduled to meet again last year before Tszyu's Achilles' tendon injury.

On Wednesday, WBC interim super middleweight champion Danny Green of Australia pulled out of his Feb. 28 fight in Dresden, Germany, with WBC super middleweight champion Markus Beyer because of an injured right hand.