The second leg will be more exciting than the first leg, Real Madrid who acts as the host will do everything they can to make a comeback, while Arsenal chooses to play it safe because they want to maintain their victory in the first leg. Ancelotti will try to rotate his La Liga game against Alaves to keep his players fit, but he must also remain focused on maintaining the gap on Barcelona. Madrid are clearly under pressure after losing the first leg and are four points behind Barcelona.
Too many talks of Real Madrid squad doing a come back at the Bernabeu, but believe me, I don't see it, I don't feel it, we all know Real Madrid have been awful and terrible this season though they still try to patch up themselves and fill up them potholes. Arsenal will definitely not go to the Bernabeu and defend, that will be treachery. I'm counting on Mikel Arteta and his boys to wrap it up completely..
I agree with your opinion that Real Madrid can't have a comeback against Arsenal because of how badly they have been performing. A three-goal difference is not what Real Madrid can easily take against a tough team like Arsenal, whose target is more of the Champions League than their domestic league ''Premier League". Arsenal is aware that they can't fail to let go of this golden opportunity to reach the finals of the Champions League. If luck should be on their side, they can lift the trophy.