He told Movistar: "We played a great match. My team left the pitch totally empty - everything was left out there. We dominated in large parts of the game and I'm really proud of them for that. I warned everyone that this squad would step up, in a big way, when I announced my decision to leave early. So, now, this is a moment for us to really enjoy!"
"People didn't believe me, said that I was going to lose the locker room. We have received a lot of unfair criticism. Today we showed the team is prepared to compete in Europe. The team has been very good with and without the ball."
Xavi also praised teenager Pau Cubarsi who was named MVP after another impressive performance.
"Cubarsi doesn't get nervous. That's in his favour. His delivery of the ball is brutal. He has that calmness and that pause... a lot of links with interiors. It's a spectacle to see him," he added. "We knew we could compete. With a positive mentality. That's how it was, I think it was deserved. Now we wait for the draw. Looking forward to facing these quarter-finals."