Both teams became increasingly angry as the game wore on and there were angry scenes at the end of the game as players confronted each other, but much of the aftermath has centred upon Vieira and Mihajlovic.
Gilles Grimandi could face a suspension if Uefa find that he struck Lazio's Diego Simeone during the game, but he said that his Gunners team-mates had suffered abuse during the game, claims backed up by Vieira.
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However, the Yugoslavian international has now admitted calling Vieira "a black bastard", but said that he was only reacting to servere provocation.
"He provoked me, not for the first time in games we've played, and this time I handed it back to him," said Mihajlovic. "I don't care what colour his skin is - nobody treats me like that.
"I was brought up on the streets and I had to learn to defend myself. You can't change that in a person and Vieira just pushed it too far.
"I did call him a black bastard and a few other things. I didn't call him a monkey because I don't think he looks like a monkey, though if I did I'd probably have told him that too.
"At the final whistle I was really angry with him. I know I shouldn't have reacted but he just went too far."
Vieira, though, has claimed that he was also provoked from "start to finish" in the game, and claimed that Uefa should take action over Mihajlovic.
"He was at it from the handshake, one racist insult after another," said the French international. "I couldn't believe what I was hearing.
"It's never happened to me before, and him - a Slav, making his money in Italy - what a way to treat a fellow pro! It's an absolute disgrace.
"When I spoke to the other Lazio players after the game they admitted Mihajlovic is a little mad.
"I've been picked on for being a Frenchman before, but never because of the colour of my skin, Something should be done about it."
