Real Madrid is in a bad condition and that was why they played poorly in the first leg. Look at how Brentford was able to hold Arsenal down for a 1-1 draw yesterday, and that made me got confused on which area Madrid didn't get right on that match day. It's nice that Arsenal took advantage of their chances in the first leg with a good goal margin, making it very difficult for Madrid to be hopeful in the second leg.
Arsenal just need to defend so that Real Madrid don't score more than 2 goals, but this goal deficit is far enough that it's hard for Real Madrid to catch up, but don't let Arsenal have the same bad performance against Brentford... it could give Madrid a chance.
Still don't understand Arsenal, why in PL they can't win twice while in CL they can beat big teams with a landslide score, but this is football sometimes full of surprises.
The atmosphere at the Santiago Bernabeu will be very different, the pressure will be immense. In my opinion, a defensive strategy isn't the best way to maintain a 3-0 lead, it would be better if Arteta used the same strategy as in the first leg. Everyone knows that Real Madrid has a formidable attacking line, and almost all of their players are equally capable of scoring. Therefore, if Arsenal chooses to defend, it's the same as giving Real Madrid opportunities to keep attacking and dictate the game.
Indeed, Arsenal is currently one of the teams with the best defenses in Europe, having only conceded 8 goals in their last 10 matches. However, by playing openly and attacking each other, Real Madrid will find it difficult to focus on building attacks, and they will also be cautious. I think, this strategy is better for maintaining the lead. Meanwhile, the draw against Brentford might be a sign that Arsenal is starting to accept the reality of finishing as runners-up instead of saving energy for the match against Real Madrid.