Davies turned the ball over at midfield on the left touchline. Leverkusen played 3-4 quick passes and Bailey ran clear past Bayern's RB as if he was standing still. Phonz should have done better, but none of his teammates did him any favours to bail him out. I'd put that goal 50% on Davies, at most. Bayern's right side **** the bed again for Leverkusen's second.
Phonz also had a few great moves going forward, and should have had an assist, but for Gnabry, I think, missing a sitter.
I fell asleep at some point during the 2nd half (4:30 am kick off), so can't comment further.