Jordan Pickford should have been shown a red card for his horror tackle on Virgil van Dijk, despite initial claims.
It was claimed by a law expert on social media that Pickford should have survived over a technicality in the rules.
But those claims have since been quashed.
Pickford's challenge was so bad that it forced the Dutch defender of with a knee injury.
But questions were immediately asked by fans about how the tackle could not have been given as a red card.
Van Dijk was adjudged to be offside by the linesman - as confirmed by VAR - which ESPN pundit and law expert Dale Johnson claimed that a 'serious foul play' red card could not be given.
In his wording, a red card could still have been given for 'violent conduct', but as it as a tackle, albeit a bad one, it does not qualify as such.
However, Johnson apologised for misguidance on the rulings shortly afterwards.
Players are responsible for their actions throughout the game, no matter the offence.
Therefore, VAR should have told referee Michael Oliver to dismiss Pickford, though it is believed David Coote did not check for the red card - and only the offside.
Whether or not the penalty would have been awarded is a different matter - and will have been dependent on when Oliver blew his whistle for the offside, confirming whether the ball was in play or not.
Former Premier League official Peter Walton believes it should have been given as a red card.
"The foul from Pickford is still relevant," said Walton on BT Sport.
"Even though the whistle may have gone, or the game may have stopped, players are still accountable for their actions.
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"The referee will have looked to see if there was a point of serious foul play happen.
"Personally, I think it was serious foul play and I think Pickford was lucky not to have been sent off for that particular challenge."
Pundit Peter Crouch added: "It's a potential leg-breaker tackle. If you see the still (image of takle) at the end there, it is horrendous.
"Sometimes I do think keepers get away with it.
"It is a potential leg breaking tackle. If it happens in the middle of the pitch it is a red card."