Michael Doyle insists the Blades must react positively to Tuesday's FA Cup exit, when they return to Sky Bet League One action at Gillingham on Saturday.
The skipper pulled no punches in his assessment of the midweek replay loss to Preston North End at Bramall Lane, admitting United were 'second best' throughout, but is adamant they will produce a much improved showing in Kent at the weekend.
Doyle remarked: "It was a bad night on Tuesday, we were second best for much of the first-half, but when we scored, against the run of play I thought we would improve.
"But if we are being honest we never got a grip of the game and the goals we gave away were poor and reflected our performance on the night as a team.
"Saying that we can't dwell too much on a missed opportunity of playing Manchester United, because we only have the league to focus on now and at the beginning of the season that was our bread and butter.
"Preston did a job on us, they stopped us playing and controlled the game, but we rolled over too easily and did handle their physical threats. We must be stronger at Gillingham because regardless of their league position it will be another tough game down there and they will be up for it.
"But we owe it to ourselves, the management and most importantly the fans to go there and get a positive result to build on the victory over Swindon last week."