Shaun Miller's early goal set table-topping Sheffield United up for a comfortable win over lowly Scunthorpe.
The Blades got off to a great start, with Miller weaving past two defenders and slotting home inside the opening minutes.
The Iron almost equalised before the break when Damien Mozika's header bounced on to the crossbar.
Dave Kitson headed in Tony McMahon's free-kick before Nick Blackman sealed it with a late penalty.
The former Blackburn striker notched his 12th goal of the season after Tom Newey had fouled Ryan Flynn in the area.
Victory for Danny Wilson's side sees them remain top of League One while Scunthorpe are three points adrift of safety.
VIEW FROM THE DRESSING ROOM
Blades manager Danny Wilson told BBC Radio Sheffield:
"We completely dominated the game from start to finish.
"We had a little bit of a wobble after half time and I think that was because of the substitutions we had to make.
"Everyone has gone home happy and from our perspective we have got everything we wanted today."
Scunthorpe United manager Brian Laws told BBC Radio Humberside:
"This is never ever going to be an easy place to come. They're red hot and there's a reason why they're top of the division.
"I thought coming into this game we're in a good frame of mind and it showed.
"We can't dwell on it. We have to learn from it and move on quickly."
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Live Text Commentary
Full Time The game is over, as the referee blows his whistle.90:00 +3:51
Foul by Marcus Williams on Nathan Ellington, free kick awarded. Michael Collins takes the direct free kick.90:00 +1:27 Substitution
Substitution Mark Duffy leaves the field to be replaced by Callum Kennedy.90:00 +0:37
John Cofie takes the chance to get an effort at goal. Blocked by Niall Canavan.89:58
Corner taken left-footed by Nick Blackman to the near post, clearance made by Adda Djeziri.87:00
Outswinging corner taken left-footed by Nick Blackman, Tony McMahon takes a shot. Blocked by Michael Collins. Corner from right by-line taken by Kevin McDonald.86:11
Adda Djeziri concedes a free kick for a foul on Matthew Hill. George Long takes the direct free kick.84:59 Substitution
Substitution Richard Cresswell joins the action as a substitute, replacing Dave Kitson.83:57 Goal scored
Goal! - Nick Blackman - Sheff Utd 3 - 0 Scunthorpe Penalty taken left-footed by Nick Blackman and scored. Sheff Utd 3-0 Scunthorpe.83:09
Unfair challenge on Ryan Flynn by Tom Newey results in a Penalty.81:43
Nick Blackman takes the outswinging corner, clearance made by Michael Collins. Nick Blackman takes the outswinging corner, Damien Mozika manages to make a clearance.81:00
Kevin McDonald delivers the ball.80:46
Nathan Ellington delivers the ball, Harry Maguire makes a clearance.79:19
Adda Djeziri is caught offside. Tony McMahon takes the indirect free kick.78:35
Unfair challenge on Michael Collins by Dave Kitson results in a free kick. Michael Collins takes the free kick.77:20 Substitution
Substitution Karl Hawley goes off and Adda Djeziri comes on.77:20
Outswinging corner taken from the right by-line by Mark Duffy, Unfair challenge on Ryan Flynn by Michael Collins results in a free kick. Free kick taken by George Long.76:27
Nick Blackman produces a left-footed shot from just outside the box that goes wide right of the target.72:46
The ball is delivered by Mark Duffy, Matthew Hill manages to make a clearance.71:31
The ball is swung over by Marcus Williams.
Andy Barcham has an effort at goal from outside the box which goes wide right of the target.70:02
The referee blows for offside against Kevin McDonald. Indirect free kick taken by Steve Mildenhall.67:25
Marcus Williams delivers the ball, Shot on goal by Dave Kitson from inside the box goes harmlessly over the target.65:45
Effort from the edge of the area by Niall Canavan goes wide of the left-hand post.65:19
Nick Blackman takes a shot. Save by Steve Mildenhall.63:58
Tom Newey concedes a free kick for a foul on John Cofie. Tony McMahon crosses the ball in from the free kick, Paul Reid makes a clearance. Inswinging corner taken left-footed by Nick Blackman from the right by-line, save made by Steve Mildenhall.62:40 Substitution
Substitution Nathan Ellington joins the action as a substitute, replacing Jimmy Ryan.61:52
The ball is delivered by Andy Barcham, Harry Maguire manages to make a clearance. Inswinging corner taken by Mark Duffy from the left by-line played to the near post, clearance by Matthew Hill.60:54
Marcus Williams fouled by Michael Collins, the ref awards a free kick. Free kick crossed by Tony McMahon, save by Steve Mildenhall.58:23
The assistant referee flags for offside against Nick Blackman. Steve Mildenhall takes the free kick.55:04
Assist on the goal came from Tony McMahon.55:04 Goal scored
Goal! - Dave Kitson - Sheff Utd 2 - 0 Scunthorpe Dave Kitson finds the net with a headed goal from inside the box. Sheff Utd 2-0 Scunthorpe.54:10
Niall Canavan concedes a free kick for a foul on Dave Kitson. Direct free kick taken by Tony McMahon.52:54
Andy Barcham delivers the ball, clearance made by Harry Maguire.51:16
Nick Blackman fouled by Michael Collins, the ref awards a free kick. Tony McMahon restarts play with the free kick.50:33
A cross is delivered by Ryan Flynn, Tom Newey manages to make a clearance.49:30 Substitution
Substitution Marcus Williams on for Neill Collins.45:54
Unfair challenge on Nick Blackman by Tom Newey results in a free kick. Tony McMahon takes the free kick.45:01
The referee blows his whistle to start the second half.45:01 Substitution
Substitution (Sheff Utd) makes a substitution, with John Cofie coming on for Shaun Miller.45:00 +3:28 Half time
Half Time The referee blows for half time.43:35
The ball is delivered by Mark Duffy.37:19
Harry Maguire challenges Christian Ribeiro unfairly and gives away a free kick. Mark Duffy takes the direct free kick, Effort on goal by Tom Newey from 20 yards. Save made by George Long.34:46
Shaun Miller takes a shot. Christian Ribeiro gets a block in. Corner taken left-footed by Nick Blackman, clearance made by Damien Mozika.33:35
Free kick awarded for an unfair challenge on Kevin McDonald by Mark Duffy. George Long restarts play with the free kick.32:49
The assistant referee signals for offside against Shaun Miller. Michael Collins restarts play with the free kick.32:36
The ball is crossed by Jimmy Ryan, Harry Maguire manages to make a clearance.31:41
Jimmy Ryan sends in a cross, Damien Mozika takes a shot. Andy Barcham takes a shot. Save made by George Long.29:35
Matthew Hill concedes a free kick for a foul on Damien Mozika. Paul Reid restarts play with the free kick.27:46
Tom Newey delivers the ball. Jimmy Ryan gives away a free kick for an unfair challenge on Ryan Flynn. George Long takes the direct free kick.26:55
Ryan Flynn sends in a cross.26:11
Andy Barcham delivers the ball, blocked by Nick Blackman. Mark Duffy takes a inswinging corner from the left by-line played to the near post, clearance made by Tony McMahon.25:29
The ball is crossed by Tony McMahon, Andy Barcham gets a block in.24:00 Booking
Booking Booking for Tony McMahon.23:45
Unfair challenge on Andy Barcham by Tony McMahon results in a free kick. Steve Mildenhall restarts play with the free kick.23:31
Matthew Hill delivers the ball, clearance made by Tom Newey.23:12
Andy Barcham produces a cross, Tony McMahon manages to make a clearance.23:02
Centre by Michael Doyle.21:54
Mark Duffy sends in a cross.21:04
Andy Barcham fouled by Michael Doyle, the ref awards a free kick. Direct free kick taken by Tom Newey.20:23
Mark Duffy sends in a cross.18:36
A cross is delivered by Michael Doyle, Tom Newey manages to make a clearance. Corner taken left-footed by Nick Blackman, Steve Mildenhall fouled by Michael Doyle, the ref awards a free kick. Steve Mildenhall restarts play with the free kick.18:18
Michael Doyle produces a drilled left-footed shot from 25 yards. Niall Canavan gets a block in.17:42
Jimmy Ryan challenges Dave Kitson unfairly and gives away a free kick. Free kick taken by Ryan Flynn.15:54
Centre by Michael Collins, save made by George Long.14:50
Nick Blackman takes a shot. Save made by Steve Mildenhall.13:39
Corner taken by Mark Duffy from the right by-line, clearance by Neill Collins.12:19
Michael Collins fouled by Kevin McDonald, the ref awards a free kick. Jimmy Ryan takes the free kick.11:25
Mark Duffy takes the outswinging corner, Neill Collins makes a clearance.10:44
Corner taken right-footed by Ryan Flynn, Steve Mildenhall makes a save.7:30
Centre by Ryan Flynn, Paul Reid manages to make a clearance. Inswinging corner taken by Nick Blackman from the right by-line, save made by Steve Mildenhall.5:53
Free kick awarded for a foul by Mark Duffy on Ryan Flynn. Direct free kick taken by Matthew Hill.4:34
Unfair challenge on Ryan Flynn by Mark Duffy results in a free kick. Free kick taken by Matthew Hill.3:26 Goal scored
Goal! - Shaun Miller - Sheff Utd 1 - 0 Scunthorpe Shaun Miller grabs a goal from just outside the penalty area to the bottom left corner of the goal. Sheff Utd 1-0 Scunthorpe.1:59
Free kick awarded for a foul by Jimmy Ryan on Michael Doyle. Michael Doyle restarts play with the free kick.0:00
The match has kicked off.
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