Brentford defender James Tarkowski faces internal disciplinary action after refusing to play in Friday's Championship clash with Burnley.
The Bees have issued a statement clarifying their stance, with the Clarets having reportedly bid for the 23-year-old earlier this week.
The statement read: "James Tarkowski will be the subject of internal disciplinary action after telling head coach Dean Smith that he did not wish to play against Burnley in tonight's Sky Bet Championship match.
"Following discussions with Smith, Tarkowski declared himself unavailable for the fixture despite being selected in the starting line-up. As a result of these actions, he will be disciplined by the club.
"Any resulting sanction will remain confidential and the club will make no further comment on potential punishment.
"Tarkowski has been the subject of transfer bids during the current January transfer window but none have matched the club's valuation of the player. In fact, all recent bids have been substantially lower than one that was rejected last year."
Tarkowski, valued at £5million by Brentford, is said to be keen on a move back to the north west and is aware of interest from the Clarets.
He told Get West London on Wednesday: "It's between the clubs. I can't decide if I'm moving from club to club. It's up to Brentford to decide where my future lies."