I only know that Real Madrid don't know how to lose, if they can't score a few goals by the end of the first half, or worse, if they concede a goal, the players will start to get nervous and commit fouls. This will lead to yellow cards from Real Madrid. Therefore, I think that the first half of the game can be decisive, Arteta should pay special attention to this, try to play as best as possible in defense, it seems to me that they can do this, but the most important thing is not to let Real Madrid pin them near their goal, because it will be difficult to withstand 90 minutes of Real Madrid's attacks.