And the burst into the box reminded BBC pundit Pat Bonner of the reasons he is touting the Scotlan midfielder for player of the year.
Tom Rogic knocked in a rebound after his shot was blocked and another from Reo Hatate was saved, cancelling out Aaron Ramsey’s opener in the third minute.
Cameron Carter-Vickers then scored just before the interval to give Celtic the lead and they held on to take a six-point advantage in the league with six games to go.
But it was the build-up to the Ibrox equaliser which caught the eye of former Celtic goalkeeper Bonner.
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"It came from the run of Callum McGregor,” he said on BBC Radio Scotland Sportsound. “That shows a real responsibility and a real captain, who has grown into it. He has had an unbelievable season.
“We were discussing yesterday the manager of the season, or player of the season at Celtic and I think Callum McGregor has been the best guy.”
"He has grown into it,” added Charlie Adam. “Consistently every week he's fit, available, and wants to play. He had a big thing to come in after Scott Brown and boy has he stepped up to the mark.”