The Red Devils will also be partially affected by the late return of some of their players after successful World Cup campaigns, but some of them will be pushed into action by the manager due to a growing injury crisis which was increased during an indifferent run of form in their pre-season campaign.
"I am not confident".
Another player who has come through an uncertain summer with United is Anthony Martial, who was left out of his France's World Cup squad, prompting comments from his agent that he wished to leave Old Trafford to safeguard his worldwide future.
In the end, though, Mourinho was left to settle with his current squad and the same can be said for his designs for the United midfield.
"I have my players and I like my players, I like to work with my players", said Mourinho.
Here is everything you need to know about the clash in Manchester...
As if Ed Woodward's job wasn't hard enough, Alexis Sanchez has told the media that he expects Manchester United to sign "big, experienced" players in order to compete. I'm sure United would've known of him, certainly Mourinho I imagine would have known of him as well.
"N'Golo Kante topped his list."I enjoy the last season, the fight to finish where we finished and to manage the best position in five or six years.
That's right, United's number one target was none other than Kante.
"The theatre of dreams has become the theatre of nightmares and a place were people do dream but only because they have fallen asleep watching united".
Supporters would certainly be talking differently about their chances next season if they had Kante lining up alongside Nemanja Matic and Fred.
Mourinho was open to swapping Martial, who he does not trust, with Chelsea to secure Willian's signature.
It leaves Mourinho to start the season with a squad broadly similar to the one which finished 19 points behind City last season, but he insists he is not as disappointed with options as some may think. Have your say in the comments section below.