Celtic defender Alistair Johnston shared his reaction on social media after the 3-3 draw with Rangers.

The full-back was penalised for a penalty despite fierce protests at Ibrox and appeared to reference the decision in his response.

Johnston - who was booked in the first half for a collision with Fabio Silva - was adjudged to have fouled Silva in the box after a VAR review.

Initially, John Beaton booked Silva for simulation but then changed his decision after Nick Walsh advised a review at the pitchside monitor.

Johnston was clearly frustrated by the decision during the match and following full-time he took to social media to post on his personal Instagram.

In a post sharing the scoreline, Johnston appeared to suggest he disagreed with the call as he posted a mouth-zipped-shut emoji and then a puzzled face emoji on his personal Instagram story.

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Brendan Rodgers was similarly disappointed with the decision as he accused Rangers' Silva of simulation, saying: “Disappointed with the penalty, that gives them a little up in the game whenever we were clearly the much better team.

"Ali, who is on a booking, has to be really careful in the second half with the timing of his tackles and I thought he was perfect with it.

“I thought the referee got it absolutely right on the field. He connected with the ball, the player simulates, and it was right.

"So clearly then they score the penalty. It gets to 2-1 and then you expect something from Rangers."

Rangers manager Philippe Clement commented: "It's not getting a penalty. I think everybody is really clear that it is a penalty.

"He has been kicked against his knee so it is not getting anything.

"It is even a little bit of a pity that he even gets a yellow card first for that.

"In that way, it is important you have VAR, there are less faults made and that's nothing against the referees, totally not because they need to take decisions in split seconds and it's so difficult to see everything."