The midfielder had made an off-the-ball run across Carl Starfelt but tumbled in full view of Willie Collum. Though the Nigerian international looked to the referee for an appeal – and James Tavernier later made his feelings known – the match official was unmoved.
And pundits watching on felt the referee was in the right.
Sky Sports’ Andy Walker co-commentator: “You can see Aribo going into the path of Starfelt, I don’t think there is anything deliberate there."
Ally McCoist, sharing the TV match summary duties added: “No, I agree, it’s one of these innocuous collisions.”
Pat Bonner, on BBC Sportsound said: “It’s never a penalty, he’s almost caught him as he’s run across him and tripped himself up.”
The match was poised at 1-1 at the time but Cameron Carter-Vickers gave Celtic the lead three minutes before the interval.