Fully deserves the ban and he can blame no one but himself for doing it. That said, it proves just how incompetent Marriner is when he can't see something that is 5-10 yards away from him without any obstructions.
What does annoy me most is the lack of consistency in things like this. Lamela v Liverpool on Saturday gets away with an eye gouge which shows that it's just trial by media as always. If you weren't watching the game, you probably wouldn't even know what he'd done. Haven't seen it anywhere in the media since it happened. Aguero on the other hand is everywhere.
We're still more than capable of beating them lot without him. Thought he had a quiet game against West Ham yet we still created several chances. Don't think he'll start Kelechi, more likely to go with Sterling/Nolito and play without a striker.