Barcelona coach Xavi was delighted with victory at Cadiz.
Joao Felix struck for the 1-0 win.
Xavi later said: Felix is a very talented player, yes.
"He's at ease, he's still happy. He played a great game. We leave him a bit of freedom of movement to exploit his talent and I think he has done wonderfully. The goal was made all by himself."
Xavi then added, We have a war on Tuesday (against PSG). We want to do something big.
"The match comes during our best form this season."