Celtic need to get Manchester City defender Jason Denayer tied down to a longer deal.
So far this season, Celtic's negotiations with Manchester City over the signing of John Guidetti have made significant column inches, but it may be a more under-the-radar transfer that is more important to them.
Guidetti's goalscoring form when he initially arrived at Parkhead understandably stole the headlines and made him an immediate transfer target for the Bhoys.
However, as the campaign has progressed, his fellow loanee Jason Denayer has become the more important player for the side.
The Belgian defender is still only 19 years old, but he plays with a maturity that belies his years and Celtic will feel his addition is far more important than Guidetti's at the end of the campaign.
The Swedish striker has actually lost his place in the Bhoys line-up recently, but Denayer's importance to the team is growing by the game.
Capable of playing at full-back or in the heart of the team's defence, the Belgian youth international has become a prominent figure in the team and he looks set to be a star of the future.
The importance of Celtic tying him down on a longer deal is only increased by the likelihood that Virgil van Dijk will leave the club this summer.
Van Dijk is the Bhoys' prized asset, but demand for his services is increasing with Tottenham Hotspur and Arsenal both interested, according to the Daily Mail.
Replacing someone of his class will understandably be difficult for Celtic, but Denayer is of the same mould and he looks like a natural successor.
The Scotsman says that the Bhoys are working on a deal to bring him back to the club on loan next season and that will have more impact on their chances of success than any transfer that involves Guidetti.