For all the intricate football, for all the smothering possession, for all the delicate passing, there's something slightly brittle, even precious, about Pep Guardiola's football teams. They really, really don't like it when things don't quite go their way. And so, while a 1-1 first-leg away draw is by no means a bad result, and while they remain strong favourites to progress to the semi-finals, one or two things seem to have got up one or two noses.
Speaking to Eurosport after the game, Arjen Robben was clearly still smarting from the humiliation of spending his evening in Alexander Büttner's pocket:
Before the game, you know, everybody said yeah, Bayern's going to win, but that's not football. That's not how it works. I think we were the only team that played football tonight. They only tried to stop us, they tried to play on counter-attack and in the end, 1-1 is okay.
As for Guardiola himself, well, he was less than impressed with the referee's decision to dismiss Bastian Schweinsteiger following his tackle on Wayne Rooney, and Rooney's agonised improvisation on the mortality and frailty of man. Then, asked by a journalist if he felt United had played negatively for a home side, he took exception:
No, no, look at me when I talk to you. I'm talking to you, but you don't look at me — you look elsewhere.
This is fun.