Stamford Bridge youngsters are used to picking up their first-team opportunities on loan, however, Sarri has said Hudson-Odoi will stick with him for the coming campaign.
Sarri was also unwilling to be drawn on the futures of Eden Hazard and Thibaut Courtois, who are both the subject of significant interest from Real Madrid as they enjoy their own extended breaks after the World Cup.
For his part, Sarri said it would be "very exciting" to come up against Mourinho, while managing Napoli.
"It's unusual", Sarri said when asked by reporters about the absence of Willian after their defeat to Arsenal in the International Champions Cup played on Wednesday.
Morata struggled to get into the game, but Sarri insists he can be excused.
Asked if he found Willian's reason for returning late odd, Sarri replied: "I think so".
"I don't know. I am not happy about the situation but I would like to talk to him".
Chelsea and United are scheduled to meet in the Premier League in October later this year. I don't know the situation in this moment. We are talking about top players and every club wants to keep their top players. "We pressed together, recovered the ball very quickly and play with very good possession to create chances, and this is the way for us for the future". "He is 17, he can go really far and I am sure that if he keeps his head, with the way he is working and performing he will be very good".