Lens have submitted an offer for Middlesbrough’s Chuba Akpom.
Sky Sport claims the bid is worth £8m.
However, Middlesbrough value Akpom at around £15m and won’t sell until a replacement is lined up.
Akpom is into the final year of his contract and, as it stands, is unlikely to sign a new deal.
Sheffield United and one unnamed European club are also interested.
Akpom was the Championship’s top scorer last season with 29 goals.