A red card was instantly produced by referee Jon Moss but the decision prompted widespread debate by pundits and fans.
Despite manager Jurgen Klopp saying the club wouldn’t appeal the decision Liverpool did decide to take it to the FA.
However the ruling is that the decision is correct and Mane will now be suspended for three matches.
He will miss the game against Burnley next weekend as well as the two matches against Leicester City in the League Cup and Premier League.
Ederson was down for over eight minutes and left the field with an oxygen match but he did return to the City bench in the second-half.