Previewing Wednesday's Champions League clash against Monaco, the Frenchman spoke highly of the trio, who were influential in the 5-3 first leg triumph.
"Stones is very young, of course, and very talented," he stated. "That's the reason he joined City.
"He is part of the England national team. He hasn't shown his best potential yet but he is doing well. It is never easy when you come to a new team but he is doing well.
"I play with Raheem Sterling and Leroy Sane every day. I see them progressing and how important they are for the team. They have great potential."