Chris Wilder says there will be no room for sentiment when the Blades begin their 2016/17 EFL League One campaign at Bolton on Saturday.
In the opposing dugout at the Macron Stadium, will be a number of familiar faces to the Blades boss, not least his counterpart Phil Parkinson, who will also be taking charge of his new club for the first time at the weekend.
Wilder explained: "I know Phil going back to when I was 14 and on schoolboy terms down there (at Southampton).
"We were in the same accommodation and played in the same youth team. He ended-up going his way and I ended-up going mine. Now our paths are going to cross again.
"Steve (Parkin) being a Blade, I've bumped into him quite a few times and spoken to him on numerous occasions.
"He's a great guy. Then there's my old mate Lee Butler of course. We go back a long way and have worked together in the past."
"We all get on but, come three o'clock, business is business. They're three great guys and we'll have a beer afterwards but, first things first, we all want to win."
The Gaffer added: "Phil will be saying the same as us; that they're probably not the finished article yet.
"But he'll still be looking for a good season. On day one, lots of strange things can happen but we've got a positive mindset.
"We're not going there to defend; we're going there to be positive. But there will be periods of the game when we have to dig-in and we'll be ready to do that."