David Moyes will respond to a Football Association charge of misconduct next week following his sending-off at Southampton.
The Sunderland manager is alleged to have "used abusive and/or insulting words towards a match official".
Moyes was sent off in the 90th minute of the EFL Trophy fourth round tie at St Mary’s, seconds after referee Chris Kavanagh rejected strong appeals for a penalty after Sunderland striker Victor Anichebe tumbled in the box.
In the immediate aftermath of the match, Moyes admitted it was the correct decision to send him off.
Speaking at the time, he said: "The decision to send me off was correct. It was the fourth official, who chased me down the touchline.
"I felt like saying ‘just stay back’. But I swore at him which I shouldn’t have done and I deserved to get sent off."
Moyes has until 6pm on Tuesday to respond to the charge.
If he admits the charge, he is set to be handed a one-match touchline ban. That would take effect at Bournemouth next weekend.
Ahead of the Arsenal match, Moyes was giving little away. He said: "I have until Tuesday before I have to do anything.
"I will make a decision next week about it."