This Barca isn't specially good. We aren't ready, and they aren't either. They have won 1 match in 4 and that was home against Ferencvaros. Of course in CL I expect them to raise their level but the same is true for us.
Their backline will likely be:
Alba - Lenglet - Araujo - Dest
Neto
Yes, it's that bad.
We should be able to score against them and make it difficult for them to commit their fullbacks too much in attack. IF Ronaldo makes it I expect to win, otherwise who knows. With Chiesa, Ronaldo, Morata, Kulusevski running at those scrubs I expect to beat them.