Newcastle United have made it clear they will not sanction Alexander Isak’s departure following a dramatic statement in which he accused the club of ‘broken promises’.

The Magpies had chased alternative strikers all summer and, if they had secured one of their main targets, they might have considered selling Isak to Liverpool, given his desire to leave.

But the message from above on Tuesday night confirmed that Isak will be told he must remain at St James’ Park. The club’s hierarchy believe the forward’s outburst has left them with no alternative but to stand firm, and privately their resolve has only strengthened.

Only this past weekend they were still attempting to bring in two forwards that would have allowed them to revisit a Liverpool bid, after earlier missing out on names such as Joao Pedro, Liam Delap, Hugo Ekitike and Benjamin Sesko.

However, landing even one striker has proven difficult, and the increasing likelihood was always that Isak would stay in the North East, despite his insistence he will not play for the team again.

The 25-year-old ended his silence on Tuesday night, declaring that trust was lost and insisting a parting was in the best interests of everyone involved.

Newcastle quickly responded with a statement of their own, maintaining they had listened to and attempted to accommodate his wishes, while stressing that they now expect to reintegrate him into the squad.

‘We are disappointed to learn of a social media message by Alexander Isak this evening,’ the club said. ‘We want to be clear that Alex remains under contract and that no club official has ever promised he would be allowed to depart Newcastle United this summer.

‘We want to keep our top players, but also recognise individuals have personal wishes and we hear their views. As made clear to Alex and his camp, we must prioritise what benefits Newcastle United, the team and our fans in every decision, and we have been upfront that conditions for a sale this summer have not been reached. We do not expect those conditions to change.

‘This is a historic club with proud values and we work hard to preserve our family spirit. Alex is part of that family and will be welcomed back once he is ready to rejoin his teammates.’

It was reported by Daily Mail Sport last month that Isak and his representatives were angered last summer when sporting director Paul Mitchell told them he would not be offered fresh terms. Former co-owner Amanda Staveley had spoken about new conditions earlier in the year, believing he merited a pay rise.

That fuelled resentment and convinced Isak his future lay elsewhere, with the striker informing the club after last season that he intended to leave.

But Newcastle have tried, and failed, to recruit a suitable replacement. Insiders now feel this frustration has prompted Isak’s statement, declaring there is no path back.

‘I have stayed quiet for a long time while others created the narrative,’ he posted on Instagram.

‘That silence allowed people to spread their version of events, even though they know it does not match what was privately agreed.

‘ The truth is that commitments were made and the club has long been aware of my stance. To pretend these matters are only appearing now is unfair.

‘When commitments are broken and trust disappears, the relationship cannot continue. That is where things stand for me and why change is the best solution for all sides, not only myself.’