Spain midfielder Isco tapped in a rebounded shot from Cristiano Ronaldo to open the scoring in the 12th minute in Real Madrid's first visit to Catalonia this season amid the worst political crisis in Spain's 39 years of democracy.
Asensio scored the second himself and it was a reminder of his natural ability.
Madrid pressed and did manage to get the ball in the back of the net, through Vazquez, but it was correctly ruled out for offside.
"It's more to do with lack of concentration".
"I don't think we played badly no", he continued.
Fair play to them, an excellent result, and to come from behind to take the lead, and then hold on as Real Madrid threw everything they could at them, will have those players on cloud nine.
Consequently, there was a significant police presence outside the stadium, similar to Barcelona's match against Las Palmas behind closed doors at the start of the month.
In a vacuum, Morata is better than Benzema right now, but keeping him was really complicated (fit with Cristiano, not accepting a bench role, etc).
Don Balon add that Zidane will resist dropping star forward Ronaldo, left-back Marcelo and striker Benzema to the bench to avoid unrest in the dressing room.
As rampant inflation engulfed the transfer market, Madrid were praised for their prudence in the summer as they made a 75 million euro ($90 million) profit. They remain third in La Liga - a point ahead of Atletico Madrid in fourth - but an eight-point gap in October is a historic divide.
The reality also is that Real Madrid hasn't been playing very well.
"He told me I seemed like a good player, but that he wouldn't change shirts with me."