The Catalans dominated for most of the first half, but failed to recover from Sergi Roberto's error as Pep Guardiola outwitted Luis Enrique.
For almost 40 minutes, Barcelona was well on top. Luis Enrique's side was a goal ahead against Manchester City through Lionel Messi and it could — and probably should — have been more. But one mistake changed everything.
During one 15-minute period of the first half, such was Barca's dominance that the Blaugrana had 72 percent of the possession. And that against a Pep Guardiola team. But even the Catalan coach himself always said that it is not having the ball that is important, but what you do with it.