Celtic goalkeeper Kasper Schmeichel was left furious after Bobby Wales equalised for Kilmarnock in the Scottish Cup - as he appealed to referee Nick Walsh.
The Parkhead shot-stopper was adamant the goal should have been ruled out due to a handball in the build-up.
Replays should the ball deflect off the arm of Robbie Deas in the box before Wales poked home to send the visitors in level at 1-1 at the break.
A VAR check did take place for a handball before the goal but this was dismissed with the goal given in the Scottish Cup tie.
It was ruled that Deas had his arm in a natural position and therefore did not commit a handball offence.
In previous years, the goal may still have been ruled out but IFAB Laws of the Game were altered in 2021 to provide clarity on similar incidents.
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It was decided that accidental handball that leads to a team-mate scoring would NOT be considered as an offence and therefore play should continue uninterrupted.
Explaining the change in a statement, IFAB correspondence read: "Accidental handball that leads to a team-mate scoring a goal or having a goal-scoring opportunity will no longer be considered an offence."
Had Deas have scored the goal himself then it would have been ruled out with accidental handball an offence if a player scores from the contact or immediately following their own accidental handball.
Premier Sports pundit - and former Celtic manager - Martin O'Neill admitted he was surprised to see the goal given as he commented on the major flashpoint.
He said: "I thought it looked like a handball, I thought it would be given."
