Germany midfielder Leroy Sane has completed his move to Manchester City for a fee of £37m plus add-ons.
"He has great technical ability, is comfortable on the ball and there is much to admire about the way he plays football," Guardiola added.
"He is fast, enjoys creating chances for others, works hard for the team and scores goals too. He also has a very positive attitude and will fit in well.
"At 20, he is still developing as a player but he is already a member of the German national side and I think he will be a fantastic asset to our club."