I think this game will be won or lost on attitude. Arsenal will be fired up and come out like a steam train, and their fans will be going potty, but one thing that they haven't had to do all season, is chase the ball.
And if there's one thing that Pep knows how to do, is to keep the ball. De Bruyne will be pivotal, because he has that extra gear to go up. Especially when it really matters in games like this. Odegaard will be redundant.
Only let them touch it when they are picking it out of their own net.
Fuck going for a draw, smash them to bits. Leave them spinning for the rest of the season.