Joey Barton was stripped of the Queens Park Rangers captaincy and fined six-weeks wages by the club on Monday following his sending-off at Manchester City on the final day of last season.
The internal punishment follows the imposition last month by a Football Association-appointed independent regulatory commission of a 12-match ban and a £75,000 ($117,000) fine.
The two fines combined means this latest episode of ill-discipline has cost the controversial player around £500,000 (622,000 euros).
His club and the FA took action after Barton elbowed City's Carlos Tevez and then kicked out at Sergio Aguero as he left the pitch in the match on 13 May, before aiming a headbutt in the direction of Vincent Kompany.
QPR stopped short of sacking Barton, but warned the player that his contract will be terminated should he "seriously breach the club's disciplinary procedures again".
They also banned him from their pre-season tour of Asia in July.