Fulham have hit a contract impasse with 18-year-old prodigy Fabio Carvalho amid interest from West Ham, Leeds, Norwich and Porto.
Carvalho, who scored on his Premier League debut against Southampton last season, has turned down an initial offer from The Londoners as he enters the final year of his current deal.
Fulham won’t want to lose the teenage winger who was born in Portugal but moved to England at an early age and has come through the club’s academy.
He made six first-team appearances under Scott Parker last season and owners Shahid and Tony Khan face a difficult decision whether to cash in if they can’t reach agreement with the youngster over a new deal.