However, despite the appointment of new boss Terry Venables, the £4.5 million signing from Chelsea has now had a change of heart and wants away from the club.
Duberry's agent Phil Graham told Sky Sports News: "Michael has told the manager how he feels. It's nothing to do with the new manager - this is how he's felt for a long time.
"He feels he needs first-team football. There has been interest from Blackburn, Bolton and Everton. We have been in contact with all of them but there has been nothing concrete yet.