Alexander Isak has been told he can earn a staggering £600,000 a week net if he signs for Al Hilal in Saudi Arabia. Isak has not travelled with Newcastle on their pre-season tour to Asia and, as revealed by Mail Sport on Thursday, he has informed the club’s hierarchy he wants to explore a move away from Tyneside. Premier League Liverpool are interested in adding the 25-year-old Sweden international to Arne Slot’s battery of forward options, despite spending £79million on Hugo Ekitike from Eintracht Frankfurt. Newcastle are keen to negotiate a new deal with Isak who has scored 62 goals in 109 appearances since his arrival from Real Sociedad and three years to run on his current contract. But the greatest riches are on offer in the Saudi Pro League and can eclipse what either Liverpool or Newcastle could afford to pay Isak. Al Hilal have made told his advisors they are prepared to strike a deal worth £600,000 a week net. On a long-term contract it is a life-changing sum of money on the table for the Swede. The complication at the heart of the issue is that Newcastle and Al Hilal are both owned by PIF, Saudi Arabia’s sovereign wealth fund.