Barcelona coach Ronald Koeman was delighted with his young players after their Champions League win at Dynamo Kiev.
Barca produced one of their best performances of the season for the 4-0 victory.
Koeman said at the final whistle: "The team has worked very well. It lacked a bit of effectiveness in the first half. We have mastered and it is to be proud of.
"You have to give rest and give minutes to those who work every day, they deserve it and have done it.
"(Antoine) Griezmann's substitution is due to physical issues. Mingueza has shown that we can count on him. I really liked the team, today's image is what we want to see."