After the match against the Serie A side, the German bemoaned the lack of rhythm his side were able to show.
He explained: “Rhythm, we didn’t have rhythm tonight. We made five changes and that obviously gives you a few problems with rhythm, but we usually get through a game.
“Atalanta were good – Atalanta fought, Atalanta defended well, that’s why we didn’t have a shot on target.
“My defence was completely fine apart from two situations, that’s how it is. Atalanta did do well in these moments and we have to admit [that].