Danny Wilson claimed Sheffield United will "take some stopping" after their 1-0 victory at promotion rivals Huddersfield on Tuesday.
The Blades have won 10 of their last 12 games in League One and fought all the way to claim a win at the Galpharm Stadium.
Centre-back Neill Collins headed the only goal after just five minutes and United thwarted Huddersfield with some stout defending.
Blades boss Wilson said: "Some of the football we played was fantastic, and if we keep this run going we will take some stopping.
"It's important that we have moved up to second but we need to be there in the last few weeks of the season.
"The boys can take a lot of confidence from this and the fans have been great. They have been with us all the way and there's a feel-good factor around the place now."