Xavi was delighted for Barcelona's youngsters after their victory over David Beckham's LA Galaxy on Saturday night.
In front of over 93,000 American fans, Pedro and Jeffren Suarez both struck for Barca in the 2-1 victory.
Xavi said: "We had to work hard, Galaxy are a competitive and dynamic side, but the team has found some good form. The juniors show that when they have the opportunity, they can take advantage.
"There is talent and when they are with us we are happy."
Maxwell was pleased to make his debut and said: "Tactically I've found many differences compared to Inter Milan. Barça play with the ball more and I learn a lot. A game is more fun if you have the ball."