James Tarkowski will not be included in Brentford's squad for Saturday's trip to Preston after refusing to play against Burnley.
The 23-year-old defender pulled out of the game with the Clarets, where Brentford lost 3-1, after telling Dean Smith he didn't want to face Sean Dyche's side.
Tarkowski has been linked with a move to Burnley during the transfer window and the Bees have rejected two offers from the Lancashire outfit.
The club's statement last Friday 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 is allowed to train with the first team but will not be considered for first-team selection for the forseeable future.
