Aston Villa and Brentford have been charged by the Football Association for the behaviour of their teams during their Premier League game on Sunday.
Villa's Boubacar Kamara was sent off in injury time for shoving Brentford's Yehor Yarmoliuk in the face.
The clubs have until Friday, 22 December to respond.
"Brentford allegedly failed to ensure that their players did not behave in an improper and/or provocative way during the 85th minute," said an FA statement.
"It's further alleged that the club failed to ensure their players and/or technical area occupants did not behave in an improper and/or provocative way during the 98th minute.