United were annihilated 6:1 in the ToteSport.com Central League by South Yorkshire counterparts Barnsley on Wednesday.
United's starting 11 consisted mainly of academy players, but it did feature goalkeeper Roy Carroll who has been handed a trial at Bramall Lane.
However, he ruined his chances of signing a permanent deal at S2 when getting dismissed in the first-half.
Barnsley went 2:0 in front with goals from Stones and Bennett, but their deficit was halved when the Blades' David McAllister pulled one back.
Carroll's calamitous barge into Barnsley's Taylor saw the referee indicate for a penalty and the goalkeeper was given a straight red card - Barnsley duly converted the spot-kick.
The Tykes then went on from strength to strength and went goal crazy and added another three - Bennett completed his hat-trick.
It was a day to forget for Mark Smith's men, particularly Roy Carroll who is searching for a new club since leaving Danish outfit Odense Boldklub last month.
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