Marcus Williams is delighted to be in the reckoning under new boss David Weir and is optimistic about United's chances this season.
The left-back has started all three games to date and has been encouraged by how Weir wants the Blades to go about their business.
Of his season to date, Williams commented: "The Gaffer wants the full-backs to play high up the field and that suits my style of play. I have played as an attacking full-back throughout my career really; it has only been the last couple of years that I have played in a more defensive role.
"I am delighted to be back in the team having worked hard to impress in pre-season."
The former Reading and Scunthorpe defender believes Weir's influence and experience can make the United backline a formidable one, given time.
Williams added: "The Gaffer is great to work with as a defender because of what he achieved in his career. He knows everything there is to know about defending and now we must learn off him and steadily we will become stronger as a unit.
"We train as we play, at a high tempo, with the emphasis on working the ball and our movement in and out of possession."