Mourinho has had to contend with post-World Cup holidays, a lengthening injury list and difficulties in the transfer market while on the five-game trip in the United States.
"This is not our team, not our squad". For example, we played against Liverpool and they had maybe 80 percent of their squad ready, Milan maybe 90 percent of their squad.
"I am confident I will get one, but I think two I am not going to get - which is not a drama", Mourinho told beIN Sports.
Despite the chance of bringing in a player in the window, Mourinho was assured that he knew his best side for the opening game of the season against Leicester.
"I'm not a big fan of one player starting the season with one club and then a couple of weeks later the window is open, he moves to another club and he plays against his former club - I really don't like that".
"So, of course, our team is not going to be very different".
Mourinho, meanwhile, is under severe pressure after a disastrous pre-season has seen him suffer a complete meltdown and there are concerns that this is the beginning of the end for the Portuguese.
"If it's possible it's possible, if not, it's not".
Mourinho was also eager to praise the change to the transfer window dates, which will now close before the start of the Premier League season.
Matic has flown back to Manchester, joining skipper Antonio Valencia, who left the tour early with a torn calf muscle, while striker Anthony Martial remains in Paris having also left the USA for the birth of his second child.
World Cup stars Marcus Rashford, Jesse Lingard, Romelu Lukaku, Marouane Fellaini and Paul Pogba are in the final stages of their summer breaks and miss the game.
"Martial, he had the baby and after the baby was born, attractive baby, full of health thank God, he should be here but he's not here".
"We don't have wingers, we don't have strikers".
Though he will sit out the match with Champions League holders Real Madrid at Hard Rock Stadium in Miami Gardens, Dalot thinks that his team may be able to spring a victory in Florida.
"I also hope somebody wants to do what Marcus Rashford and Phil Jones chose to do, which is to be back a little bit earlier to try to help the team because, for the beginning of the season, we are going to be in trouble".