London calling! Arsenal, Chelsea-linked Isak breaks silence on transfer rumours

However, the Magpies have faced challenges with the Premier League's profit and sustainability rules in recent times, which are also expected to limit their spending once again in January.

To balance the books, Newcastle were compelled to sell Yankuba Minteh and Elliot Anderson in the summer and may need to cash in on another asset to make further investments next summer, especially if they are unable to qualify for Europe.

This has fueled speculation that a substantial bid for Isak could prompt the club to sell, as it would provide the funds needed to maintain financial compliance and reinvest in their squad.

Newcastle United are in eighth place in the Premier League standings and will face Aston Villa at home on Boxing Day.