United took the lead in the 16th minute via Norwegian ace Sander Berge, but proceeded to collapse once the hosts equalised in less than five minutes, with a second half surge with three goals in just over 15 minutes finishing off the Blades.
The result saw the Blades end the weekend still in the play-off places, but a host of sides are now snapping at their heels as the battle for a top six finish looks set to go down to the wire.
Speaking after the game, United manager Paul Heckingbottom said: “These lads have shown they bounce back. That’s why we’ve been able to climb the league table. Because they’ve been able to put things right and have shown the desire to put things right.
“We have to treat this as a bump in the road. And that’s what we will do.
“We know the issues and the things we have to put right. We know where we fell short and why it happened, the things that contributed to it.
“But we also know, because we’ve shown it time and time again, that we have the quality and the character to put those things right. We know this group is capable of going out there and doing it again.”
Next up, United will look to bounce back on Wednesday evening, when they travel to take on mid-table side Blackpool.
Take a look at the latest news and transfer stories from the second tier, as the reaction to last weekend's action continues.
1. United eye Baggies stopper
Manchester United have been tipped to make a move for West Brom goalkeeper Sam Johnstone, as they look to find a replacement for want-away stopper Dean Henderson. The pair have both previously been involved in the England senior set-up. (Daily Star)
2. Hammers leading Worrall race
West Ham are said to be leading the likes of Everton and Brentford in the race to sign Nottingham Forest defender Joe Worrall. The club are said to want up to £15m for the towering centre-back, who has been on the books since his youth career began back in 2011. (Daily Mail)
3. Cooper reveals previous Davis interest
Nottingham Forest boss Steve Cooper has revealed he was keen to sign current loan star Keinan Davis while managing at Swansea City previously. He also praised the player’s technical skills, and claimed he has a bright future ahead. (Nottingham Post)
4. Lilywhites takeover edges closer
Preston North End are moving closer to a £40m takeover, according to reports. It has been suggested that American businessman Chris Kirchner is closing in on a deal to complete the purchase of the 1938 FA Cup winners. (The Sun)