He joined Leeds United at the age of 14 years and began his career in the club.
Phillips' current Leeds deal is due to expire in the summer of 2024 but the club remain confident their academy graduate will extend his stay in West Yorkshire.
Phillips has two years left on his contract and Leeds are keen to keep him but the club could find it hard to reject such an offer, particularly as contract negotiations with the vice-captain have stalled.
United are searching for central midfielders this summer with set to leave once his contract expires in June.