Manchester City must not underestimate Madrid, if they really want to win, they must be able to focus on playing consistently and regularly on the field so they can face Madrid like last season, be more calm and measured to be able to score goals, I believe that Manchester City can do it if they don't underestimate Madrid. they will be much more focused, we all know that all of Manchester City's key players will almost be played in the first leg and if Madrid want to win they have to beat the first leg.
It is not typical of City to underestimate a club that has won many titles in the UCL. Madrid is the current king of the UCL, it would be a big mistake if City were too overconfident in this match. I think, Pep Guardiola also really understands how Madrid plays the strengeth and weakness, and what he needs to do is keep his playing strategy on the field running well. This is the Quarter-Final round, there is no way City can underestimate Madrid.
Last season City destroyed Madrid and showed they would be champions... This season Madrid have a chance to get revenge, but for that they need to play very well in Madrid, because in England away City are very strong... I think that the winner of this match will be the winner of the Champions League, just like last season...