Newcastle United midfielder Jonas Gutierrez has hit out against Arsenal captain Robin van Persie for his scuffle with Magpies goalkeeper Tim Krul.
The pair almost came to blows during the Gunners' last-minute 2-1 victory over Newcastle at the Emirates on Monday.
Gutierrez believes that the striker's reaction was "wrong" and that his actions mirror his character as a man.
"Van Persie was wrong," said Gutierrez. "There was no need for him to do that. Arsenal won the game, it was finished.
"I can't understand a person like that. It is not right. When you feel like that it's because you are not a good person. I don't care about the football, I'm talking about the person. When you have people who do that, it's not right.
"He was the only Arsenal player who reacted like that. The others were saying to him 'calm down, calm down'. There didn't seem to be any reason for Van Persie to do that. Well done to Tim for staying calm. In a second you can lose your mind but we have to stay focused."
The Football Association could intervene and take action following the incident earlier this week.
