The positive thing is that we will have the ball very little today. Other than that, it's hard to find any bright spots to cling to. I think we need a big dose of luck to get something out of the game. In addition, we have to play on the percentages, constantly slowing down the pace of the match.
Then I agree with some that Gray can be important in this type of match. We need someone to stretch Arsenal vertically, so that there are not constantly new waves of attack.
It will then be important to close off half-spaces, and lead them out into the side corridors. Force them to hit crosses from there. We should dominate in the air. Then we also know that one goal is enough to kill the game for Arsenal. Then the match is over.