The Swede is the subject of an approach from Liverpool this week.
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But The Sun says Newcastle are insisting Isak will not be allowed to leave - for any price.
While the board rates him at £120m, officials are insistent that Isak will not be cleared to leave, no matter the player's opinion.
Instead, management are now prepared to up Isak's £130,000-a-week wages to a club record £200,000-a-week to keep him happy.
The centre-forward has been unsettled after former Toon chief Paul Mitchell refused to consider opening talks over a new deal last season. But that stand has since changed.
