Liverpool's pursuit of Newcastle United striker Alexander Isak has reignited transfer speculation this summer, with the Public Investment Fund (PIF) at the center of attention. The Saudi-controlled entity, which owns significant stakes in both Newcastle and Al-Hilal, has sparked questions about whether it might facilitate a deal that benefits one club at the expense of the other.

At the heart of the discussion is Liverpool's need for financial flexibility to fund a potential deal for Isak. According to reports, the club is exploring options to offload striker Darwin Nunez, with Al-Hilal emerging as a potential destination. The Saudi Pro League club, coached by Simone Inzaghi, has expressed interest in signing the 26-year-old Uruguay international, who has struggled to replicate his stellar form from last season at Anfield.

The sale of Nunez would not only alleviate Liverpool's financial strain but could also provide additional funds to compete for Isak, whose future at Newcastle has been clouded with uncertainty. Newcastle rejected a £110 million bid for the Swedish forward earlier this month, valuing him closer to £150 million. However, reports have suggested that Isak is keen to explore opportunities elsewhere, prompting speculation about a potential move to Anfield.

The involvement of PIF, which holds a 75% stake in four leading Saudi clubs, including Al-Hilal, and an 80% stake in Newcastle, has raised questions about whether there could be a coordinated effort to facilitate the transfer. Newcastle fans, already concerned about their club's priorities under PIF ownership, worry that allowing Al-Hilal to sign Nunez could disadvantage their team.

"It makes me think about what the priority is for PIF," Newcastle fan writer Charlotte Robson told BBC Sport. "More and more discontent has been felt in the fanbase lately over where Newcastle sits on PIF's list of priorities, and allowing another of their clubs to benefit at the potential expense of us feels even more like we are being overlooked."

However, football finance expert Kieran Maguire believes that Liverpool could afford to sign Isak even without the proceeds from Nunez's potential sale. He told BBC Sport that the Reds could spend an additional £200-250 million without breaching the Premier League's Profit and Sustainability Rules (PSR). Liverpool have already made a series of significant signings in the transfer window, including Florian Wirtz, Hugo Ekitike, and Jeremie Frimpong, for a total of about £265 million. Despite the departures of key players like Luis Diaz, Jarell Quansah, and Caoimhin Kelleher, the club has still managed to recoup £115 million.

Maguire also downplayed the idea of a direct quid pro quo between PIF-owned clubs. "I suspect that Liverpool are likely to be the biggest beneficiary of this, rather than a PIF club," he said. "Newcastle don't want to sell Isak." He added that while Al-Hilal could have pursued other strikers, the availability of Nunez made his signing an attractive proposition.

Meanwhile, the situation with Isak remains fluid. The 25-year-old has been training alone at former club Real Sociedad amid reports of his desire to leave Newcastle. His Newcastle manager, Eddie Howe, has stated that Isak must "earn the right" to rejoin the first-team squad. Howe has also confirmed that no further contact has been made with Liverpool since their initial bid.

Isak joined Newcastle from Real Sociedad in a £60 million deal in 2022 and was the club's top scorer last season as they won the Carabao Cup. However, his future has been uncertain, with reports suggesting that his contract negotiations have stalled, and he has expressed a desire for a new challenge.

As the transfer window continues, the fate of both Nunez and Isak remains unclear. Liverpool's pursuit of Isak will depend on their ability to secure the funds necessary for a deal, while Newcastle's stance on retaining their star striker could be pivotal. PIF's role in the negotiations, if any, could ultimately shape the outcome of one of the summer's most intriguing transfer sagas.

For now, the transfer market remains in flux, with clubs and fans alike waiting to see how the story unfolds. As Liverpool and Newcastle navigate the complexities of ownership, contracts, and player preferences, more clarity is expected in the coming weeks.