Bayern Munich coach Thomas Tuchel admits it's difficult to prepare for games against Pep Guardiola teams.
Guardiola's Manchester City will host Bayern tonight in the first-leg of their Champions League quarterfinal.
"I don't think I can learn much from other games I've played against Pep," he said.
"It's unique what Pep does. We'll try to find solutions but we'll need a complete performance to create problems for City."
He added: "It is a major task in front of us. I was just outside [at Etihad Stadium] and that is the current gold standard for us.
"We want to live up to that but the team is entitled to be confident after our results and performances in the Champions League so far and we have to try to continue like that.
"Maybe we play in a role of slight underdog, which is not a problem. We'll try to make the most of it. We need to be confident and on top of our game."