Gavi, though, was particularly impressive, the teenager scoring an impressive individual goal in the first half, before assisting Nico's winner late in the second half.
"What's surprising is his age, he's 17 and look how he competes," said Xavi.
"Today he made the difference with a goal and an assist. More than anything, his work is spectacular. We're happy to have him and I don't want to compare him to anyone. There's no ceiling for him."