The Football Association have requested television footage of the clash between Arsenal players towards the end of last night's Carling Cup semi-final second leg at White Hart Lane, after referee Howard Webb confirmed he had not seen the entire incident.
Tottenham booked a place at Wembley with a resounding 5-1 win over their arch rivals.
During the closing stages Nicklas Bendtner - who had earlier scored an own goal - became involved in an altercation with team-mate Emmanuel Adebayor, and appeared to complain of being headbutted by the Togo international.
Arsenal captain William Gallas stepped in to try to calm matters down, before then himself being confronted by the angry young Danish striker. Eventually, referee Webb had to intervene to restore order.
As the Yorkshire official revealed he did not witness the events in their entirety, the FA have now asked broadcasters to provide any relevant television footage.
Once that is obtained, any incidents will be shown to Webb for his opinion.
Should the referee indicate action would have been taken on the night had he witnessed it first hand, such as a red card for violent conduct, the FA can then retrospectively issue charges against any individuals.
While still photographs in Wednesday's press clearly show the Arsenal players involved in some sort of confrontation, it is understood there may not be any footage of the actual alleged headbut itself.