A first clean sheet of the season paved the way to United's progression in the FA Youth Cup on Tuesday night and coach Travis Binnion was delighted.
At Bramall Lane, 90 minutes plus extra time could not produce a winner in the first round tie between the Blades and Bradford City but goalkeeper Aaron Ramsdale led the heroics in the penalty shoot-out, saving twice and scoring himself in a 4-2 success.
Binnion commented afterwards: "Everyone is very pleased with the result and progression. We were organised, disciplined and ensured that we kept ourselves in the game throughout the whole 120 minutes.
"Playing in the FA Youth Cup and at Bramall Lane is a big occasion for the lads, it is one of the highlights of our season, and we had eight first year scholars out there, who were experiencing it for the first time.
"It was our first clean sheet of the season and credit to all who contributed because it was deserved, we limited their chances.
"It was great for Aaron Ramsdale, he made a number of saves in normal time and held his nerve in the shoot-out, he took the acclaim from his team-mates at the end but it was a team effort and we now look forward to the second round."
United will have to wait to find out the second round opponents. A trip to the winner of the Stourbridge v Chesterfield tie, which is played next week, is the reward for beating Bradford.