Another who has come through the ranks at United, the midfielder has a keen eye for a pass.
A scorer in the Under-18 friendly win against Bury last term, Riley was also included on the mini-tour to Slovakia and has been making progress.
Described as a utility player who can play at right-back, right-midfield or centre-midfield, he is extremely tenacious and does not know the meaning of the word defeat.
Not only is he always full of running but he is an excellent striker of a dead ball as well.
Some sterling work at the 2013 Milk Cup, when operating as an orthodox right-winger, has shown he is in real contention for a regular spot in the Barclays Under-18 Premier League campaign.