Arsenal have been charged by the Football Association after players confronted referee Michael Oliver following Myles Lewis-Skelly's controversial dismissal in the 1-0 win against Wolves.
Oliver showed Lewis-Skelly a straight red card in the first half after the teenager fouled Matt Doherty, with the referee ruling it was serious foul play.
The Gunners appealed against the decision and the 18-year-old's three-match ban was overturned earlier this week.
Arsenal have until 3 February to respond to the FA charge.
Police have been investigating "threats and abuse" directed at Oliver, said referees' body Professional Game Match Officials Limited.