Nigel Clough was proud of his players, despite Sunday's 5-3 defeat against Hull City in the semi-final of the FA Cup at Wembley.
Jose Baxter and Stefan Scougall twice put the Blades in front in the opening 45 minutes, before City hit United with three second-half goals in the space of 16 minutes.
Jamie Murphy ensured a frantic three minutes of stoppage time, but David Meyler broke the hearts of the 32,500 Unitedites inside the national stadium with a game-clinching strike with the final action of the game.
Looking back though, Clough was understandably keen to focus on the positives, remarking: "We wanted to give it a real go and we did, nobody can take anything away from us.
"The lads left nothing in the dressing room and that was what we have said all week, we wanted to do ourselves justice and despite the defeat we put in a performance to be proud of.
"We have come to Wembley in an FA Cup semi-final against Premiership opposition, took the lead twice, scored three goals and pushed them all the way.
"If we had defended a little bit better at key moments who knows what might have happened, but this cup run has been tremendous for everyone connected to the Club.
"We have given our supporters something to shout about and it is amazing to think we have just pushed top-flight opposition all the way at Wembley, given where we were a few months ago."
The Gaffer continued: "At 4-2 we just needed that goal to come a few minutes earlier to give us a real chance of getting an equaliser.
"When Harry (Maguire) went on that mazy run at the end, but for the bounce of the ball it could have easily fell in our favour, but ultimately we gave ourselves too much to do and the clock was always against us.
"But we have matched a very good Premier League side for long periods in an FA Cup semi-final and that pleases me.
"We said the result wouldn't take away from what has been a remarkable run, now we want to finish the season strongly and take this momentum into next season."