Shakhtar Donetsk midfielder Fred is being linked with Manchester United.
United boss Jose Mourinho sees Fred as a potential replacement for Besiktas target Marouane Fellaini.
The Mirrorsays Fred's name has been circulated ahead of the window opening.
The dynamic midfielder has been a stand-out performer for the Ukrainian giants and was handed a new long-term deal last summer – but now a number of Europe's top clubs are taking a keen interest in the Brazil international.
Fred's camp had been looking to take him to Spain with the likes of Sevilla and Valencia both showing an interest but now the prospect of moving to the Premier League is likely to turn his head.