BBC Sport’s chief football writer Phil McNulty: The addition of Kylian Mbappe to Real Madrid’s ranks makes it hard to see beyond a 16th triumph in the tournament for them and a sixth for coach Carlo Ancelotti.
Man City will be their closest challengers but Real just have that incredible habit of getting this particular job done even when nowhere near their best and they have been over this course and distance successfully so many times.
BBC Sport’s French football expert Julien Laurens:
It is getting a bit boring now because Real Madrid win the Champions League every year – and I see no other outcome again this season.
The Spanish champions have the experience, the savoir faire, the heritage, the money time mentality and the talent.
Imagine keeping the same manager and pretty much the squad (although Toni Kroos is a obviously massive loss) and adding the best player in the world in Kylian Mbappe!
BBC Sport’s Spanish football expert Guillem Balague: You imagine the likes of Real Madrid and Manchester City in the semi-finals and, once there, there are many things that affect a result (a referee decision, an injury, a mistake) that is not very clever to predict.
But I feel City have got what it takes to win both the domestic long-term competition and the cup competition that is the Champions League.
They are very strong in both boxes and have the maturity to understand what is required in every part of the pitch and every minute of the game
BBC Sport’s German football expert Constantin Eckner: Real Madrid won the trophy in May and have since added Mbappe to their attack.
The Spanish powerhouse is once again the team to beat, and they may very well win it for the 16th time.
I wouldn’t pay too much attention to their performances until January, because Carlo Ancelotti’s side excels in the knockout stages whereas other teams struggle to perform on point in the later months of the season.
As far as challengers to Madrid’s throne go, Man City and Bayern Munich have the quality to win the competition.