Arsenal manager Arsene Wenger said he "regrets everything" after he followed his dismissal by pushing fourth official Anthony Taylor during Sunday's dramatic victory over Burnley.
Wenger was sent off for reacting angrily to a 93rd-minute penalty given to Burnley, who trailed 1-0.
Andre Gray converted to equalise but Alexis Sanchez then scored another penalty to give Arsenal a 2-1 win.
"I should have shut up - I apologise for not having done that," said Wenger.
"It was nothing malicious. I should have kept my control, even if it was in a hectic time.