Borussia Monchengladbach boss Marco Rose admits it will take something "more than extraordinary" to beat Manchester City in the Champions League on Tuesday.
The Germans are down 2-0 heading into the second leg of their last-16 tie.
"It would be more than extraordinary, it would be a sensation," said Rose, who is taking over at Borussia Dortmund at the end of the season.
"Pep has them playing almost Total Football.
"We don't want to give the impression that this is a friendly. It's a Champions League game where we have a chance of reaching the next round, but we have to be realistic.
"We want to put in a good performance and then come home and concentrate on our essential tasks.
"Of course the City game is important to us. On the other hand, if I had said that I have full confidence that we can go there and turn it around, then everyone would have shaken their head and said Rose has lost his marbles."