Blackburn boss Mark Hughes has played down the half-time tunnel incident which marred Wednesday night's Carling Cup defeat at Old Trafford.
A clash between Rio Ferdinand and Robbie Savage sparked an episode in which the Rovers midfielder pursued Ferdinand down the tunnel, followed by players and coaching staff from both teams.
Despite reports of punches being thrown in the ensuing melee, Hughes insisted there was no cause for a FA investigation.
He added: "In my view not a great deal happened. There are observers in every tunnel area these days and if anything merited reporting or questioning I think it would have been brought up by now.
"You will have to ask Rio Ferdinand why he did what he did as he was leaving the pitch. But it was something and nothing and I think we can draw a line under it."
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