McTominay, who made his senior debut during Mourinho's tenure, told the High Performance Podcast: "On the day he left, I saw him in the corridor and he invited me in. I didn't know what to say. I was gutted. It was hard.
"This guy means so much to me and has given me all the dreams I could ever wish for, and now he's gone. I didn't know what to think. I was umming and aahing. I just said 'Thank you for the opportunity, you've been a real-life legend for me, good luck for what you do next'.
"We are still in touch sometimes, if I've had a good game he lets me know. He'll text saying 'well done kid' as he always calls me. They were great times and I'm so grateful for him."