The Mirror reports that United chief scout Jim Lawlor watched the youngster in action at the weekend.
United could decide to make a move for the 19-year-old defender before the transfer window closes on Friday.
United face competition from Premier League rivals Everton in the race to sign the defender.
Everton scout Alan Stubbs also watched the youngster in action at the weekend.
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Being an amiable guy is good for you and Jurgen Klopp is living proof.
Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.