Chris Sutton has accused Celtic defender Cameron Carter-Vickers of "ducking" out of a header before Rangers' winner.
Rangers claimed a 3-2 win in the derby on Sunday as Hamza Igamane lashed a shot into the top corner two minutes from full-time.
The goal came from a long ball punted up the pitch that was not dealt with before Alistair Johnston slipped allowing Igamane to control and finish.
Pundit Sutton - on Sky Sports commentary duties - reckons Carter-Vickers ducked out of a clearing header leading to the sickening late goal.
"I think Cameron Carter-Vickers actually ducks out of the header, that was my reading of it," said Sutton.
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"Then Alistair Johnston slips. But I've got to say the finish was worthy of winning any game."
In the studio Neil Lennon commented: "It should never have got that far. Carter-Vickers misses the header completely. I don't care if he gets a shout or not, just head it.
"I'm not convinced he got a shout. For whatever reason Cameron has misjudged it."
Kris Boyd said: "Carter Vickers must get a shout from somewhere, I'm not quite sure.
"It's as if he just ducks out of the way of it."
