West Brom's Nigel Quashie has been charged with misconduct by the Football Association after being sent off against Middlesbrough on Sunday.
Quashie was sent off for kicking George Boateng
The midfielder already faces a four-game ban for the red card, which was his second of the season.
But he could be out for longer for alleged use of foul and abusive language towards one of the referee's assistants as he left the pitch.
Quashie has until 1800 GMT on Wednesday to respond to the charge.
An FA disciplinary commission set to examine the case on 7 March, and manager Bryan Robson has already said he will fine the Scotland international over the incident.
"I am disappointed with Nigel's discipline because he let himself down and he let his team-mates down," he said.
"It was a sending-off offence. I don't think it was really violent but he had a little kick at Boateng and the referee was right to send him off."