Eurosport - Sun, 28 Mar 13:55:00 2010
Martin Olsson took an ungainly tumble in the Burnley box with the apparent contact made by goalkeeper Brian Jensen minimal to enable Dunn to tuck away the decisive spot kick in the 20th minute.
Burnley were unchanged as they sought their first victory over their East Lancashire rivals since 1979, while Sam Allardyce brought in Jason Roberts and Gael Givet for the clash.
The atmosphere was fervent at a packed Turf Moor, and it was Blackburn who began the brighter with the hosts slightly subdued from the outset.
Olsson was a lively presence early on, and the midfielder surged through on goal and beat Jensen with a clinical finish in the 15th minute, only to look up and see the offside flag raised. Replays only served to confirm that it was a desperately close call.
But four minutes later Olsson was left to feel less aggrieved with the officials as he went down extravagantly after hurtling into the Burnley box; Jensen thrust a leg out, but any slight contact appeared to be after the midfielder was sent sprawling to the floor, with referee Mike Dean having little hesitation in pointing to the spot.
Local boy Dunn stepped up to slam the spot kick into the top corner of Jensen's goal with aplomb, and the midfielder clearly relished the opportunity to compound the hosts' frustration and give his side the ascendancy.
Burnley had their vociferous appeals for a penalty rejected by Dean in the 38th minute as Christopher Samba clumsily scythed down Wade Elliott, but the defender was hugely fortunate with the contact proving to have been narrowly outside the Blackburn box.
Clarets boss Brian Laws made his disgust known to the officials after the break, and his side responded with a second-half display of purpose and positive intent.
Blackburn were content to sit back, soak up the pressure from their hosts, and attempt to launch fleeting counter-attacks from deep as the home side were roared on as they looked for a crucial response.
Laws introduced Robbie Blake with the aim of injecting a touch more inspiration in the final third of the field, while Allardyce reflected the two sides' contrasting mindsets by shoring up his midfield with Brett Emerton at the expense of Diouf.
Despite the changes, it was Burnley who suddenly found themselves under the cosh: Olsson latched on to Pedersen's delivery superbly in the 67th minute, then unleashed a fierce strike which struck the underside of the crossbar and bounced out to safety.
After that reprieve, the hosts again afforded the all-action Olsson another clear run at goal two minutes later, but on this occasion the midfielder lacked any conviction as he fired his tame shot straight at Jensen.
The home fans continued to voice their discontent at referee Dean as Brown hared off his line and appeared to fumble the ball outside his penalty area as David Nugent applied the pressure, but the keeper was not penalised.
Burnley had a glorious opportunity to equalise in the 81st minute as substitute Danny Fox whipped over a devilish delivery from the left which Samba deflected perilously close to his own far post with Fletcher unable to stab the ball home with a despairing lunge.
The hosts piled forward in their droves as Blackburn clung on desperately to preserve their slender lead, but they did so to good effect as Rovers move up to 10th spot, while keeping their rivals firmly lodged in the relegation zone.