United's U21s were forced to settle for a point against Barnsley at Shirecliffe on Monday afternoon.
The Blades edged a tight first-half before substitute Daniel Cockerline put the Blades in front just before the hour mark. The hosts had chances to make the game safe before Brad Abbott rescued a point for the Tykes with a fine free-kick.
United started brightly and after Khan's shot had Dibble scrambling across his goal, Banton could have done better with two headed opportunities from corners from the right.
Midway through the first-half De Girolamo limped off the field and was replaced by Cockerline, who was involved in the build-up to a chance that fell to Hamilton, but the left-winger was crowded out in the penalty area.
At the other end Barnsley's first opening of the game came late into the first-half when Sousa broke down the left before squaring the ball to Oates, but the striker dragged his shot wide of the far post. On the stroke of half-time Dibble produced a timely intervention to deny Cockerline.
The home side began the second period on the front foot and after Johns had been denied by Dibble, United deservedly took the lead through COCKERLINE, who cleverly got across his marker to apply the finishing touch to Hamilton's inviting low cross.
Substitute Coustrain saw an effort cleared off the line after good work by Reed, before the visitors drew level with their next attack. Banton was adjudged to have halted the progress of Oates unfairly and from the subsequent free-kick ABBOTT rifled home past the outstretched arm of Willis.
The Blades searched for a winner for much of the remainder of the game and the best chance fell late on when Hamilton found himself in the clear, but he was denied by the smart reflexes of Dibble.
Blades: Willis, Paling, Hodder, Whiteman, Banton, Evans, Johns, Reed (Heh 64), Khan (Coustrain 54), De Girolamo (Cockerline 24), Hamilton.
Unused: Eastwood, Cheeseman.