The midfielder set up the opening goal for Alexis Sanchez after just six minutes, and also scored himself in the 90th minute of a match the Blaugrana controlled from start to finish.
"We had a magician wearing orange boots and the number eight, handing out the ball," the sporting director told Canal +.
The win moves Barca 16 points clear of arch-rival Real Madrid and Zubizarreta added that he had never spoken with president Sandro Rosell about the prospect of signing a Blancos player, following his revelation that he was admirer of one of Jose Mourinho's players.
"I speak very little with him [Rosell] about players, and never about Real Madrid players. Only when we play against them. They have a great squad and the Castilla as well," he explained.
The former goalkeeper then revealed he will paying a visit to coach Tito Vilanova as he continues his recovery from a cancer relapse.
"I'm going to see him [Tito] in person and we will talk about football, as we usually do when we are together, and so I can touch him and see him. We all also discuss the future."
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