United's youngsters returned to winning ways at the Steel Phalt Academy at Shirecliffe, with a deserved victory over Huddersfield Town.
An own-goal gave the Blades a half-time advantage, before Jordan Hallam rifled home a free-kick on the hour to make of the victory, despite the Terriers, who had earlier been reduced to ten-men, netting a late consolation.
The Blades dominated the opening exchanges and were the better side for long periods of the contest.
The home side took the lead in the 25th minute when Gilmour delivered a teasing free-kick from the right that was diverted into his own net by the retreating Town defender.
On the stroke of half-time Slew missed a good opportunity to make it two, following a swift counter attack. Whilst at the other end, Ramsdale had to make an excellent fingertip save to deny the Terriers a leveller against the run of play.
United's dominance continued into the second period and HALLAM duly got on the scoresheet as the clock ticked past the hour mark, netting direct from a free-kick from 25 yards out.
The visitors were reduced to ten men moments later. Following a fully blooded challenge that saw Gilmour and his opposite number booked, from the restart the Town player tried to take his own retribution on the Blades midfielder and was rightly shown a second yellow card.
But just as it appeared the Blades were coasting to a win, Huddersfield grabbed a lifeline, scoring after the home side failed to deal with a long goal kick forward, but in the end it was nothing more than a consolation effort as United secured a fourth home success of the season.
United: Ramsdale, Charlesworth, Brown, Gilmour (Brown 71), Cummings, Semple, Smith, Cantrill, Slew (Litchfield 78), Hallam, Garrick (Maw 66).
Unused: Perryman, Adebowale.