Manchester United have yet to secure a contract extension for striker Dimitar Berbatov.
The Bulgarian's contract with the Red Devils expires at the end of this season, meaning that he is free to talk to other clubs from January 1.
Alex Ferguson's £30m signing has featured sparingly this season, and has failed to find the net in the Premier League.
The 30-year-old has attracted attention from Fulham and Turkish side Galatasaray, but United do have the option of a 12-month extension.
Berbatov shared the Premier League's Golden Boot with Carlos Tevez last season.
