Pep Guardiola has described Tuesday's 2-1 Champions League comeback win at Hoffenheim as one of his "happiest days" at Manchester City.
The Bundesliga side went ahead after 44 seconds as Ishak Belfodil swept home, before Sergio Aguero got Man City level not long after.
David Silva went on to seize the victory in the 87th minute after a mistake from opposition defender Stefan Posch.
The result secured City's first points of their Champions League campaign after defeat to Lyon a fortnight ago and Guardiola hopes the difficult nature of the first two games will prove of long-term benefit.
"After one minute we conceded and it's not easy, but after that we fought, as always, as a team," he told Sky Sports.
"The previous two seasons were not simple, but we qualified with games left and this time it's not going to happen.
"Maybe for the future it's going to be good to live these kind of situations. You cannot go through to quarters, semis, without living these situations.
"That's why today is one of the happiest days I've had in this club because it's going to help us."