Match ends, Sheffield United 3, Derby County 1.
Sheffield United moved up to fourth in the Championship with an impressive victory over fellow promotion hopefuls Derby County.
Billy Sharp guided Enda Stevens' floated cross into the corner of the net with a fine header to put the Blades ahead just before half-time.
Harry Wilson curled in a superb free-kick from 25 yards to equalise - the Liverpool loanee's ninth goal of the season.
But David McGoldrick raced clear and coolly dinked the ball over Rams goalkeeper Scott Carson to restore United's lead, before substitute Leon Clarke sealed the win with a close-range header.
Chris Wilder's side were good value for their 12th victory of the campaign, with Sharp denied by Carson at point-blank range in the first half, and then nodding inches wide late on.
The Blades had lost back-to-back matches at Bramall Lane heading into the game, but 32-year-old Sharp eased any early nerves with a skilfully placed header past the despairing dive of Carson.
After Wilson's stunning set-piece rattled in off the crossbar to bring Derby back into the game, it was the hosts who put their foot on the gas in search of a winner.
The Blades' positivity paid off as McGoldrick latched onto Jon Fleck's through ball and cleverly chipped in his seventh goal of the campaign, before Clarke's effort went in via a deflection.
Sheffield United finish their 2018 fixture list with a home game against Blackburn on Saturday, while Derby visit second-placed Norwich.
Sheffield United manager Chris Wilder told BBC Radio Sheffield:
"They've got some good players and it was a tight Championship game first half - but it wasn't a tight Championship game second half.
"There's been a lot of noise and nonsense talked about us, but I keep telling the players to go out and show everybody what we're all about and I think we did that this afternoon.
"We jumped all over them second half. The energy levels and performance levels were up there and the support they received was amazing."
Derby County manager Frank Lampard told BBC Radio Derby:
"It's a hard place to come - let's have it right, they're a good team.
"We were well and truly in the first half and when we equalised, but the disappointing part was the last portion of the game.
"We made individual mistakes and gifted them goals. In these games you can't make individual errors."
- 16NorwoodBooked at 75mins
- 21DuffyBooked at 45minsSubstituted forClarkeat 80'minutes
- 3StevensBooked at 32mins
- 1CarsonBooked at 89mins
- 6KeoghBooked at 54mins
- 5TomoriBooked at 82mins
- 2WisdomSubstituted forWaghornat 85'minutes
- 44HuddlestoneSubstituted forEvansat 70'minutes
- 11JozefzoonSubstituted forNugentat 69'minutesBooked at 89mins
- 7WilsonBooked at 28mins
- Geoff Eltringham
- Shots on Target
Second Half ends, Sheffield United 3, Derby County 1.
Foul by Fikayo Tomori (Derby County).
George Baldock (Sheffield United) wins a free kick on the right wing.
George Evans (Derby County) wins a free kick in the attacking half.
Foul by Leon Clarke (Sheffield United).
Fikayo Tomori (Derby County) wins a free kick in the defensive half.
Foul by David McGoldrick (Sheffield United).
David Nugent (Derby County) is shown the yellow card.
Scott Carson (Derby County) is shown the yellow card.
Back pass by Scott Carson (Derby County).
(Sheffield United) wins a free kick in the attacking half.
Oliver Norwood (Sheffield United) wins a free kick in the defensive half.
Foul by Jack Marriott (Derby County).
Substitution, Derby County. Martyn Waghorn replaces Andre Wisdom.
Goal! Sheffield United 3, Derby County 1. Leon Clarke (Sheffield United) header from the centre of the box to the bottom left corner. Assisted by John Egan with a headed pass following a set piece situation.
John Fleck (Sheffield United) wins a free kick in the attacking half.
Foul by Harry Wilson (Derby County).
Fikayo Tomori (Derby County) is shown the yellow card.
Enda Stevens (Sheffield United) wins a free kick on the left wing.