Chris Sandow has signalled his intention not to return to Warrington Wolves next season, despite a contract that ties him to the club until the end of the 2017 Super League campaign.
Sandow joined Warrington in July 2015 from Parramatta Eeels, where he fell out with coach Brad Arthur before being granted an early release from his deal.
But the Australian's agent has now informed Warrington his client does not intend to return to the Halliwell Jones Stadium to see out the remainder of his contract.
Karl Fitzpatrick, head of rugby operations said: "Chris is contracted until the end of 2017 and should have reported for pre-season training today [21 November].
"This is a clear breach of contract. We will be retaining his registration until further notice.
"We the club are disappointed that Chris has decided not to return, we are already underway in monitoring a potential replacement both internally and externally."
Sandow scored 11 tries for Warrington as they reached the Grand Final, where they were beaten 12-6 by Wigan Warriors.