Arsenal and Manchester City have both been charged by the Football Association for failing to control their players in Wednesday's top-of-the-table Premier League clash.
Citizen stars twice surrounded referee Anthony Taylor during their crucial 3-1 win at the Emirates, once just before half-time and the other on 64 minutes. Gunners players did the same in the 56th minute, as Mikel Arteta's title favourites surrendered their position as league leaders on goal difference.
An FA statement alleges both clubs failed to ensure their players behaved in an orderly fashion. The sides now have until February 21 to respond to the charge.