The Portuguese boss put his faith in youth for Man United’s victory over Crystal Palace with four players earning their full Premier League debuts.
Man United made history with Angel Gomes coming off the bench in the closing minutes of the second half as he became the first player of the 21st century to feature in the Premier League.
Here’s a look at the youngsters in training ahead of the all-important fixture.
While Mourinho won’t be looking to play a squad of youngsters in United’s most important fixture of the season, he has confirmed he could include Timothy Fosu-Mensah following his performance against Palace.
He’ll be looking to play his strongest possible line-up after resting key players in the Premier League and there’s no doubt they’ll be up for the task against Ajax.