The youngster has fallen down the pecking order at Old Trafford and has been linked with a January move away from the club.
United are reportedly willing to pay Shaw £2m as a severance package, but the figure below his own estimation.
An Old Trafford source said, via 'The Sun': 'Shaw will not make it easy for the club to show him the door in January.
'The club have one figure in mind while he has another for severance pay. They are way off of each other.
'He wants to get his career moving again, but he is not going to do United a favour if they do try to force him to leave.'