Fullback Ethan Laird and midfielders James Garner and Dylan Levitt won praise from the Old Trafford hero.
He said, "Yeah, I was impressed with some of the lads.
“I think the two lads in centre of midfield Garner and Dylan Levitt were impressive.
“Without being too risky, I thought they kept the game ticking over quite nicely and were in nice control of the game.
“I was impressed with the right back as well. I've not seen much of Laird. I thought he looked good, he looked powerful, he looked strong.
“Ole (Gunnar Solskjaer) has done that before, he thinks that if young players are good enough he will give them a chance. Which is good."