The Scottish FA has confirmed Celtic and Rangers will escape punishment after Sunday's tunnel bust-up.
Tempers flared at half-time during the Old Firm thriller which finished 3-3.
Rangers star Craig Moore and Celtic's Robert Douglas appeared to clash as other players looked on.
But Drew Herbertson, head of the SFA's disciplinary and refereeing department, said: "The incident was not mentioned in the referee's report. There will be no further action".