Danny Wilson says there will be no easy games for the remainder of the season, as United look to secure a top two finish.
The Blades are second in League One with 12 games remaining, but with nearly every team having something to play for, Wilson believes nothing can be taken for granted, not least at Boundary Park on Saturday against relegation-threatened Oldham Athletic.
Speaking at his weekly press conference at Shirecliffe, the Gaffer said: "Everyone is fighting for something.
"The teams in mid table will be fancying a shot at the play-offs. Teams in the top six will want to push for a top two spot and the teams at the bottom are desperate to climb to safety at the expense of those just above them.
"The three points for a win really does keep the season going until the final week for nearly every team, just look how Hartlepool have clawed themselves back to within touching distance of survival in recent matches.
"Oldham have so much to play for and a win for both teams is equally as important for totally different reasons. It will be a stiff contest, Oldham were excellent at Everton the reports say and, despite the result, they will remain confident.
"They weren't overawed at Goodison Park and they will have taken plenty of heart from that performance."
Ahead of the weekend, Wilson says the emphasis rests with his own players to do the business rather than worry about results across the country, concluding with:
"For me it is down to us from now on in and that is with all due respect to the opposition.
"We must be positive and look for another three crucial points, we have to do our job and not worry about what is happening elsewhere."