The Donegal man was taking his seat for the match at Villa Park against Southampton.
But when he sat on Lambert’s seat in the dug-out, the rest of the staff were in stitches.
And former Celtic great Lambert had a good giggle when he arrived.
Villa drew 0-0 with the visitors, giving them a vital point in their bid to avoid being sucked into the relegation zone.
Given was appointed a temporary assistant this week after two staff were suspended by the club.