Arsenal's draw with Brentford on Saturday ended with a brawl.
A late challenge by Bees star Christian Norgaard on Oleksandr Zinchenko sparked a shoving match, with Eddie Nketiah also unhappy with rough challenges on him.
Nketiah and Norgaard had to be separated, with Thomas Partey, Gabriel Magalhaes and Ben White also involved in the incident.
Mikel Arteta, who has received criticism for his touchline antics this season, showed his fury.
The Spaniard repeatedly remonstrated with the fourth official during the match.
He then berated referee Peter Bankes at full-time.
Arsenal had taken the lead on 66 minutes via new boy Leandro Trossard.
But the in-form Bees hit back just eight minutes later, with Ivan Toney levelling for Thomas Frank's men.
The goal came from a Brentford set-piece, which was eventually worked to Toney by Norgaard.
It was subject to a lengthy VAR check but was eventually allowed to stand, much to Arsenal's ire.