The Wallabies could be without vice-captain Michael Hooper for the crunch match with Wales after the key forward was cited for alleged foul play in Saturday’s victory over England.

Hooper was cited over an incident late in the first half of the 33-13 belting at Twickenham, where he cleared out England fullback Mike Brown in the ruck.

He has been cited for allegedly “charging into the ruck or maul without use of the arms or grasping the player”.

Hooper, who was penalised but not yellow-carded for the incident, faces a hearing on Tuesday.

If found guilty, he will miss the Wales clash on Saturday (Sunday AEDT), which will decide top spot in Pool A.