Ruud van Nistlerooy arguably got Patrick Vieira sent off with a second yellow card, with Arsenal players then confronting the Dutchman after he missed a penalty in the 0-0 draw.
"People have asked me many times, "Would you do that again?." I always say 120 per cent I will do it,' he told the Handbrake Off podcast.
"I don't mind about the ban, the £40,000 fine. I don't care, as long as I protect the people I care for, the people I share the dressing room with, the people I love.
"Because I always said when I came to Arsenal, I feel like they are my family. We had a very great batch of people.
"We cared about each other on the pitch and outside of the pitch so I can consider Arsenal as my family, so therefore I will do whatever is necessary to protect my family.
"In this case against United away from home, I think I would do it every single year if it's necessary."