The teenager earned the Man of the Match award with a composed display at Wembley in Sunday's Carabao Cup triumph over Aston Villa, providing the assist for Sergio Aguero's opener.
"I want the best for him," Guardiola said, addressing the media ahead of our midweek FA Cup trip to Sheffield Wednesday.
"He will get what he deserves. Of course, I am delighted about his performance and behaviour in good and bad moments.
"Work and work and in the end, it will always pay off.
"(His next step is to keep) improving, improving, improving.
"At 19, you have a lot to learn but with this behaviour, he can reach whatever he wants."
Hear what Pep had to say in part one of his press conference via the video above....
CITY+ | Sign up for exclusive content
Don't forget, you can watch full-match replays of all our games on City+.
Fans can sign up to a 30-day free trial, after which CITY+ is just £1.99GBP / month. For more information, visit https://www.mancity.com/City+