Man I've totally U-turned on this game.
This is certainly a must win and Arsenal / Wenger always bring the goods when top 4 is seriously disappearing from sight. I can't see him losing this with a dire performance as that would really be him finished so I don't think the dire performance will happen. I think it's a matter of City being up for matching it or beating it and with their current position, I don't think it'll be as big of a game in their heads for their top 4 hopes.
It'll probably be like the 6-3, anyone's game until the end, then we lose comfortably