A Danny Haynes double secured a victory for Barnsley at the home of south Yorkshire rivals Doncaster.
The striker broke the deadlock after 54 minutes when he headed in a cross from Bobby Hassell.
Haynes cut in from the right and fired in a low left-footed shot which squirmed under keeper Neil Sullivan to secure his side's victory.
Doncaster failed to muster any sort of threat as the visitors easily held on to leapfrog them in the Championship.
The home side have now lost four consecutive games in all competitions and injuries to Mark Wilson, James Chambers and Matt Kilgallon will only have heightened their problems.
Barnsley also had their injury problems with striker Garry O'Connor having to go off but the away side took a grip of the game thanks to new signing Haynes.
He turned his side's pressure into a goal when he opened his goalscoring account for the club.
Hugo Colace wasted a golden opportunity to double his side's advantage as he shot wide but Haynes eased his blushes with his second.
Jim O'Brien almost gave the Barnsley win an added gloss but his long range strike went into the side-netting.
Live text and stats
Tuesday, 25 January 2011
06 Chambers (Friend 52)
27 Kilgallon (Hird 71)
15 Wilson (Keegan 45)
10 Sharp yellow card
06 Foster (Arismendi 71)
15 Trippier (O'Brien 46)
33 Hill yellow card
36 O'Connor (Gray 87)
Ref: HaywoodAtt: 10,740
Attempts on target
Attempts off target
90:00+5:22 The referee blows for the end of the match.
90:00+2:38 Shot by Danny Haynes from outside the area goes high over the crossbar.
90:00+1:05 Free kick awarded for an unfair challenge on James Hayter by Hugo Colace. Direct free kick taken by John Oster. The ball is
delivered by James Coppinger, clearance made by Jason Shackell. Outswinging corner taken right-footed by James Coppinger from
the right by-line, Headed effort from deep inside the penalty area by James O'Connor goes harmlessly over the crossbar.
89:02 Effort from inside the area by James Hayter misses to the left of the target.
86:42 Substitution Andy Gray is brought on as a substitute for Garry O'Connor.
86:10 A cross is delivered by James O'Connor, Luke Steele makes a comfortable save.
83:37 Outswinging corner taken right-footed by James Coppinger from the right by-line, Jason Shackell makes a clearance.
82:51 Shot from long distance by Jim O'Brien misses to the right of the target.
81:56 Dean Shiels takes a inswinging corner from the left by-line played to the near post, clearance made by Nathan Doyle.
81:05 Unfair challenge on George Friend by Jim O'Brien results in a free kick. Dean Shiels takes the direct free kick.
79:21 John Oster sends in a cross, Matthew Hill makes a clearance.
73:54 Effort from just outside the box by Paul Keegan goes over the bar.
69:31 Stephen Foster fouled by Billy Sharp, the ref awards a free kick. Direct free kick taken by Luke Steele.
69:31 Substitution Diego Arismendi is brought on as a substitute for Stephen Foster.
69:31 Substitution Sam Hird joins the action as a substitute, replacing Matthew Kilgallon.
69:31 Booking Billy Sharp is cautioned by the ref for unsporting behaviour.
67:04 Booking Matthew Hill booked for unsporting behaviour.
66:14 Hugo Colace provided the assist for the goal.
66:14 GOAL - Danny Haynes:Doncaster 0 - 2 Barnsley Danny Haynes finds the back of the net with a goal from inside the penalty box to the bottom right corner of the goal. Doncaster
64:36 Unfair challenge on Dean Shiels by Hugo Colace results in a free kick. Direct free kick taken by John Oster.
64:03 James Coppinger delivers the ball, Header by James Hayter from deep inside the penalty area misses to the left of the target.
62:46 The referee blows for offside. Luke Steele takes the indirect free kick.
60:31 Nathan Doyle concedes a free kick for a foul on John Oster. The free kick is delivered right-footed by John Oster from left
58:04 Hugo Colace has an effort at goal from deep inside the area missing to the right of the goal.
57:20 Dean Shiels sends in a cross, Jim O'Brien manages to make a clearance.
56:03 James Coppinger concedes a free kick for a foul on Matthew Hill. Luke Steele takes the free kick.
55:42 Jim O'Brien produces a cross, save by Neil Sullivan.
54:34 Free kick awarded for an unfair challenge on Stephen Foster by James Hayter. Luke Steele restarts play with the free kick.
53:27 Assist on the goal came from Bobby Hassell.
53:27 GOAL - Danny Haynes:Doncaster 0 - 1 Barnsley Danny Haynes finds the net with a headed goal from inside the six-yard box. Doncaster 0-1 Barnsley.
51:30 James Coppinger is ruled offside. Luke Steele takes the free kick. Danny Haynes fouled by Matthew Kilgallon, the ref awards
a free kick. Jacob Butterfield crosses the ball in from the free kick, Paul Keegan manages to make a clearance.
51:30 Substitution James Chambers leaves the field to be replaced by George Friend.
48:39 The ball is sent over by Jacob Butterfield.
47:58 Garry O'Connor has an effort at goal from 18 yards. Neil Sullivan makes a comfortable save.
47:24 A cross is delivered by Jim O'Brien, Hugo Colace takes a shot. Save made by Neil Sullivan.
45:01 The match restarts for the second half.
45:01 Substitution Jim O'Brien joins the action as a substitute, replacing Kieran Trippier.
45:00+1:37 The whistle is blown to end the first half.
44:44 Substitution Paul Keegan is brought on as a substitute for Mark Wilson.
41:02 Jacob Butterfield takes the outswinging corner, clearance made by John Oster.
40:29 Matthew Hill produces a cross, Garry O'Connor takes a shot. Adam Lockwood manages to make a clearance.
39:02 Shot from 30 yards by Garry O'Connor. Neil Sullivan makes a comfortable save.
36:37 Outswinging corner taken from the right by-line by Dean Shiels, clearance made by Bobby Hassell. Outswinging corner taken
by Dean Shiels.
34:45 Unfair challenge on Billy Sharp by Stephen Foster results in a free kick. Direct free kick taken by Matthew Kilgallon.
34:02 Dean Shiels produces a right-footed shot from outside the penalty box and misses wide left of the target.
29:53 The assistant referee signals for offside against Danny Haynes. Free kick taken by Neil Sullivan.
29:03 Corner taken short by Dean Shiels.
27:50 The offside flag is raised against Kieran Trippier. James O'Connor takes the free kick.
26:18 Unfair challenge on James Coppinger by Jacob Butterfield results in a free kick. Free kick crossed by John Oster, save made
by Luke Steele.
23:55 The referee blows for offside against Danny Haynes. Free kick taken by Neil Sullivan.
21:27 Billy Sharp fouled by Jason Shackell, the ref awards a free kick. Direct free kick taken by John Oster.
20:20 The ball is crossed by Dean Shiels, clearance by Stephen Foster.
19:32 The offside flag is raised against Dean Shiels. Luke Steele restarts play with the free kick.
19:22 Centre by John Oster, clearance by Matthew Hill.
18:39 Billy Sharp takes a shot. Luke Steele makes a save. Outswinging corner taken by James Coppinger from the right by-line played
to the near post, Nathan Doyle makes a clearance.
18:01 Nathan Doyle gives away a free kick for an unfair challenge on James Coppinger. Free kick crossed right-footed by John Oster
from right wing, clearance made by Nathan Doyle.
16:47 The official flags Kieran Trippier offside. Free kick taken by Neil Sullivan.
14:58 Jacob Butterfield crosses the ball, Adam Lockwood makes a clearance.
14:31 Corner taken left-footed by Jacob Butterfield to the near post, James O'Connor makes a clearance.
13:25 Garry O'Connor fouled by Adam Lockwood, the ref awards a free kick. Jacob Butterfield takes the direct free kick. The referee
blows for offside. Neil Sullivan takes the free kick.
11:18 Billy Sharp has an effort at goal from outside the box which goes wide left of the goal.
9:21 Drilled right-footed shot by Hugo Colace. Save by Neil Sullivan.
7:41 Free kick awarded for a foul by James Hayter on Bobby Hassell. Luke Steele restarts play with the free kick.
7:17 The offside flag is raised against Danny Haynes. Adam Lockwood takes the indirect free kick.
4:32 The referee blows for offside. Free kick taken by Bobby Hassell.
1:34 Billy Sharp has an effort at goal from 20 yards. Luke Steele makes a comfortable save.
0:00 The match begins.
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