Chelsea's contract talks with Dominic Solanke remain at deadlock.
The Sun says Solanke, who has been part of Antonio Conte's first-team squads this season, is in the final year of his contract.
And there are fears he could see out his deal and move in the summer, with Chelsea then receiving compensation after bringing him through their Academy.
Solanke has not played a senior game this season but his reputation is still high after a spell at Vitesse Arnhem last season.