Liverpool's Fabinho should have received a red card for his ugly challenge from behind on Brighton's Evan Ferguson, the refereeing body have admitted following outrage from fans that the tackle went unpunished.
Referee David Coote did not dismiss Fabinho in real time after he sunk his studs into Ferguson during Sunday's FA Cup tie at the Amex Stadium, while VAR Neil Swarbrick did not correct the call from Stockley Park.
The PGMOL have now accepted that was an error with new refereeing chief Howard Webb feeling it is important for the organisation to take a transparent approach when major mistakes such as this are made.