Manchester United are facing having to pay David de Gea £30m this summer to prevent the Spaniard from running his contract down.
The Spaniard is set to enter the final year of his current deal at Old Trafford and, with no clear suggestions as yet that the goalkeeper will sign fresh terms, there remains a clear risk that De Gea could leave the club for nothing at the end of next season.
That scenario would leave the 28-year-old with the choice of his next move, and there are subsequent fears at United that they could lose their star man without receiving a fee.