Mark Howard is confident the Blades can build on Saturday's success over Shrewsbury Town, starting at Coventry City on Tuesday night.
David McAllister's early strike proved decisive in United's bid to tame the Shrews, although Howard had to be at his best to make sure of the opening day success.
The imposing stopper commented: "We are delighted with three points, it is a good start to the season and it gives us something to build on.
"I was busier than I would have liked but I was happy to play my part and keep the team in front.
"Both teams played at a high tempo and the game was really end-to-end, it was probably quite exciting for the fans and thankfully we held on for the win.
"I am proud of clean sheets so it is always nice to start as we mean to go on. We defend well as a unit and hopefully that will give us momentum ahead of two tough away matches."