I think people are sleeping on Atletico Madrid this season, they have a solid squad and a great coach, they could make a deep run in the UCL, especially if they can get their defense clicking properly.
I still doubt even though Atletico Madrid has a complete squad or has a great coach, when Real Madrid and Barcelona are still participating in the Champions League, it could be that the Champions League Final this season wants these two clubs to meet because anything can be arranged, even though many candidates still have a chance such as Liverpool, Bayern Munich or other big clubs, that's why I still doubt the quality of the Champions League, hopefully it's just my assumption but I don't intend to belittle the Atletico Madrid squad.