Isak's anger stems from the fact he reportedly believes he is being paid "well below market value," but he also wants to see the club's Saudi owners to show more ambition and invest in new signings and better facilities to help the team progress. The 25-year-old's goals last season helped Newcastle end a long trophy drought to win the League Cup and also secure Champions League football for next season. However, the club have gone on to endure a difficult transfer market, missing out on top targets such as Joao Pedri, Bruan Mbeumo and James Trafford.