The pair trained with the senior side during the latter stages of last season and received their full first team debuts against Crystal Palace.
They have been subsequently handed a place on Man United’s pre-season tour of the United States and will feature against LA Galaxy on Saturday.
And the duo, speaking to MUTV soon after making their debuts, expressed a notable hunger for more of the same next season.
Mitchell, as a left back, will fancy his chances of consolidating his place under Mourinho’s wing next season: both Marcos Rojo and Luke Shaw will miss the start of the season through injury and the 20-year-old, with a few assured performances in pre-season, may find himself acting as cover for Matteo Darmian – the first choice left back at this given time.
McTominay is harder to pin down. The Englishman faces brutal competition in midfield and may find more success out wide. He is by all accounts a disciplined, hardworking factotum and Mourinho clearly sees something in the way he goes about his business. Pre-season will provide valuable time for the pair to stand out.