Bayern Munich's sports director Max Eberl admitted they 'struggled' against Celtic after their Champions League fright.
Celtic came within seconds of claiming their first-ever win on German soil and taking the play-off into extra time before Canadian international Alphonso Davies netted an injury time leveller.
And the German giants' sports director accepted it was a difficult night for his club, who were overwhelming favourites to qualify.
He said: "We struggled against Celtic.
"We actually got off to a good start. We had more chances to score in the first few minutes.
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"But then Celtic had two or three chances too and you could see that we were a bit off the mark. In the second half, we did much better, created chances and kept the opposition at a distance. But we still conceded.
"But I think we need to praise the mentality the team showed and how they fought back and prevented extra time.
"They stuck with it until the end and then got the deserved goal to make it 1-1.
"But we have to learn a few things from this.
"Look, I'm not sitting here and saying we're in top form and everything is fantastic because that's not the case at the moment.
"That was very, very hard but we are through. That was the most important thing and now we have to learn a few things from it.
"I'm sure the manager will talk to the players about it."
