Ahead of Saturday's vital Sky Bet League One encounter with Crewe Alexandra, Nigel Clough is urging his players to relax.
Speaking to the media on Friday, the Blades chief commented: "It was only a week ago, after a couple of draws, that it was being said that we had blown our chance of getting in the play-offs. Now, after two wins, people are saying we are guaranteed to get in the play-offs.
"The truth is, neither is the case. We are in a good position but there is a lot of work to do in our eight remaining league games, the key for the lads is to relax, play their own games and not get caught up in the pressure."
Next on the agenda is Crewe, who United have played three times already this season after two meetings in the FA Cup.
"They have had their ups and downs," said Clough of the Railwaymen. "They looked to be clear of the relegation zone after a great run but you lose two or three games and you can be back in it.
"Crewe are one of the most dangerous teams in the league. No matter what position they are in the league, they will keep playing their brand of football.
"There is an unpredictability about Crewe, home or away, they can play you off the park if everything clicks for them - it is up to us to make sure it doesn't."
Clough's team go into the game looking for a third home victory in the space of seven days following wins over Port Vale and Scunthorpe.
He added: "It was good to follow up the Port Vale result by playing with a certain amount of freedom against Scunthorpe. A positive result on Saturday will bolster our hopes of reaching the play-offs and send us into a couple of tricky, derby fixtures with confidence."