Barcelona midfielder Sergio Busquets spoke after his team's 4-0 win over Villarreal in the first game of the season.
The player was happy with the team's display and careful over Ansu Fati, who scored twice and shone at just 17 years old.
"We have to be calm with him, we know the ability he has. He's tremendous for his age but we don't want it to go too far. Beside him he's got many team-mates who he can learn from to set his ceiling as high as possible. We have to let him play his game and take advantage of being in good form."
On the game he added: "We played well, especially in the first half, where we were superior. We looked for space and found team-mates with good mobility. Later we dropped intensity it's true (but) kept a clean sheet. In general it was a game that left us with good feelings."