Ched Evans played 90 minutes, but United's U23s were defeated by Wednesday at Bramall Lane on Monday evening.
A crowd of 862 watched on as goals from Jack Stobbs and Preslav Borukov saw the Owls to victory, although another positive for the Blades was David Brooks returning to action following glandular fever.
The game's first goal came on 15 minutes as Wednesday won the ball in United's half and STOBBS was sent through to fire past Warhurst.
A few minutes later United got on the offensive as Carruthers sent Norrington-Davies down the line and the wing-back's cross grazed the crossbar.
United almost drew level on the half hour mark as Carruthers put in an inviting ball to the back post which was met by Smith, but his header went just wide.
Before the break, Evans following over at the back post from Norrington-Davies's left-wing centre.
Shortly after the interval United had their best opportunity of the night as Mallon's strike across goal was parried by Wallis in to the path of Hallam who blasted over from close range.
A quiet period in the game had a dose of energy put into it after the hour as Smith picked up the ball in the box, turned his defender and forced a good save out of Wallis as United pressed for an equaliser.
However just moments later the Owls doubled their advantage as Stobbs curled a cross into to the back post and BORUKOV met it and headed home past Warhurst.
In the closing stages Wednesday came close to adding a third when a cross field ball found Borukov in plenty of space but he couldn't add to his tally as he dragged just wide.
Blades: Warhurst, Hallam (Brooks 69), Norrington-Davies, Doherty, Graham, Semple (Mallon 45), Gilmour, Slater, Evans, Carruthers, Smith (Wright 76).
Unused: Kelly, Broadbent.