Nigel Clough was understandably in reflective mood following Saturday's pre-season friendly loss at Burton Albion.
A poor first-half showing saw the Blades trailed 3-0 at the interval and despite a spirited second 45 minutes, it ended 4-0 to the Brewers, beaten in last season's League Two play-off final, at the Pirelli Stadium.
Looking back the Gaffer remarked: "Burton were better opposition than we would have probably wished for first time out, full credit to them, but our performance showed we are still in the very early days of pre-season.
"We wanted to split the sides up evenly for both halves, but arguably the second-half team was stronger.
"We looked rusty in the first-half and Burton on the back of a game or two already were just quicker and sharper and took their chances.
"We wanted more than what we showed in the first-half and we acquitted ourselves much better as the game progressed."
Clough reserved a special mention for a handful of players, adding: "Diego (De Girolamo) looked sharp as did Jose (Baxter) and Harrison McGahey was very good alongside Harry (Maguire).
"Chris Basham settled in well and looked strong and Craig Alcock was as impressive as anyone else in his performance."