The former Brighton & Hove Albion man was given his marching orders after catching Ryan Christie with a late tackle early in the second half at Anfield.
Liverpool led 2-1 at the time, going on to secure a 3-1 victory, cancelling out Antoine Semenyo’s early opener.
Asked about Mac Allister’s red card,
Jurgen Klopp said: “I saw it back. The amount of times I got asked about it shows already it’s worth discussing it again, which we will probably be. I asked Macca and he said ‘I touched him, but not really’. That was all he told me and then after the game I saw him back and if you are going to have a list of points we need to give a red card, I think the majority, besides contact, no other box is actually ticked at that moment. It is a decision I think we all agree if he gives a yellow card, VAR will not overturn it and now they have given a red card VAR is not overturning it because the contact means there is no clear and obvious mistake. But I think the punishment, 40 minutes with 10 men today, is already punishment enough. We have to talk to the authorities.”