Who's talking about knocking teams from the Champions League competition? Every manager keen on holding firm ground and focusing on winning the title because it's the ultimate important to everyone, Pep Guardiola and Carlo Ancelotti are experienced. Manchester City and Real Madrid are both great teams, having the basic necessities of winning matches with ease efforts. Revenge? There's no such thing because elite teams will continue to fight to become the best in the UEFA Champions League this season.
Champions league literally comes with a different spirit and kind of mindset such that every team wants to get to the finals because of the prestigious nature of the champions league, it's considered the top elite league across Europe in football so playing in the champions league teams usually do want to exhibit only but excellence and nothing Less even coaches too do have same spirit with champions league.
As a team or Player or even a Coach, it's actually seen a a very great height and achievement attained whenever they get to win the champions league trophy so they literally put in all their best to make sure they get to add this to their portfolio that they have once lifted the champions league trophy and that's why most Coaches in the champions league usees only but their best strategy and make sure they put out only but the best performance and that's the same spirit that can be seen in the Manchester city and Real Madrid team as it regards the champions league.
I would have wished to see them both face each other at the finals but then it happens to be that they are now meeting at this point making it quiet difficult to support a particular team especially for those who aren't fan of either team. Manchester city has always been the team to want to defend the trophy as they want to create history of which Madrid has this record already of winning the trophy twice in a row.