Why don't they really become UEFA League champions next season!
If you are so sure about Atletico winning La Liga, you should place a bet (@9.00) on them. I doubt that they will have something to do with the title in La Liga but anyway. In the Champions League I wouldn't even count them to the (bigger) favourites. Teams like City, Liverpool, Bayern, Real, PSG or Juve are way ahead of them imho. I see them on a par with Dortmund, Man United, Inter etc. (Chelsea and Barca are hard to judge).
I agree.Atletico Madrid has not done some impressive transfer of players for this upcoming season so most probably they will suffer to be a top contender in La Liga.In Champions League which has way better teams than La Liga has it will be even more difficult for them.However they have chances as long as they get easy adversaries until they go up to 1/16 where then there are no more easy opponents.