Griezmann was interested in joining the Red Devils last summer but Atleti’s transfer ban meant the 26-year-old forward felt obliged to stay on with the La Liga club.
It’s understood Jose Mourinho is determined to bring Griezmann to United ahead of the 2018/19 campaign and United have made a stunning contract offer to the France attacker.
However, according to The Sun, Griezmann has turned down the £300k-a-week offer and is demanding wages of £400k-a-week before he agrees to a move.
Barcelona are also expressing a keen interest in the £89million-rated Frenchman.
A United source told The Sun: ‘The goalposts have moved significantly since the first attempt to sign Griezmann.
‘The package offered last year which was agreed is now a lot less than what he wants next summer.
‘It might be too much even for us to afford. The club is desperate to sign him but it is an awful lot of money.
‘His people are making different demands which the club might be reluctant to give in to.’