Fizzing Mikel Arteta branded red card sinner Nicolas Pepe's behaviour as "unacceptable" but spared Kieran Tierney from his wrath in the wake of his side's 0-0 draw with Leeds.
Pepe was dismissed for headbutting Ezgjan Alioski and the Spaniard let rip at his £72m winger who could have cost them three Premier League points.
But Tierney wasn't name-checked by his boss after he clashed with the Leeds striker at the full-time whistle and had to be dragged away.
However, Pepe wasn't spared from the Arteta's foul mood as he let the Ivory Coast international know of his displeasure.
"It's very clear, it's unacceptable," said the Arsenal boss.
"We knew about the level of intensity, aggression and how alive they are in every action. We have to be able to deal with that and handle that situation."
Arteta's bad mood was not helped by injuries to Willian and Bukayo Saka and his misfiring Gunners have managed just one goal in their last five league games.
He added: "I am cross because I want to win and when I don't, I get upset.
"We had a difficult week, we lost two players on international duty, we lost two to injury today and one to suspension. © PA
"We have an incredible amount of games coming up and we need to score more goals. It is a concern, but I know how much this team has evolved in a lot of ways."
Arsenal have gone nearly eight hours since they last scored a league goal in open play and Arteta admits he is concerned.
"It worries me obviously," he said. "We need a lot of goals to win matches and be the top team we want to be.
"Without that, it doesn't matter how good we are defensively. We have moments where we have to be more ruthless, but it is the most difficult thing in football scoring goals.
"We have to take a point considering the circumstances."