Leandro Trossard reportedly offered his Arsenal team-mates an explanation in the changing room after he was sent off against Manchester City on Sunday.
The title rivals played out a fierce 2-2 draw at the Etihad with Pep Guardiola's men rescuing a point through john Stones deep into injury time.
Erling Haaland gave the champions an early lead but the Gunners hit back through goals from Riccardo Calafiori and Gabriel Magalhaes in an action-packed first half.
And there was more action to come as Leandro Trossard was shown a second yellow card for kicking the ball away in the dying minutes.