Alvaro Fernandez, Bjorn Hardley, Dillon Hoogewerf, Joe Hugill, Marc Jurado, Charlie McNeill, Charlie Savage and Charlie Wellens were the youngsters involved.
Of course, those young Reds need look no further for inspiration than Mason Greenwood, a teenager himself until very recently.
The prolific forward was also part of the proceedings at Carrington, as were regular members of the first-team squad including Dean Henderson, Tom Heaton, Aaron Wan-Bissaka, Alex Telles, Phil Jones, Donny van de Beek and Marcus Rashford.
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