MK Dons 1-2 Carlisle
Jordan Cook's brace helped Carlisle come from behind to secure a dramatic victory at MK Dons.
Carlisle's Lee Miller blazed a penalty over the crossbar after Jabo Ibehre handled Jon-Paul McGovern's cross.
Shaun Williams made no mistake with his spot-kick after Dean Bowditch was dragged down by Murphy, but Jordan Cook's neat finish levelled the scores.
A third penalty was awarded in injury time when Tom Flanaghan felled Cook, who duly slotted home the winner.
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MK Dons manager Karl Robinson told BBC Three Counties Radio:
"The officials have got two big things wrong tonight.
"The penalty (for Carlisle's winner) was outside the box. We've seen it twice - it's outside the box
"There was a punch on Stephen Gleeson's face, which we've got video evidence of.
"But we can't go through this season and keep missing chances. It's hard for the back four, they make one mistake and get punished for it.
"We've all got to take responsibility. Me included."
Carlisle United manager Greg Abbott told BBC Radio Cumbria:
"As a manager, you need these type of games to let you know you've got a fighting chance.
"There's a massive amount of credit to our fans, our staff, our players and everyone who travelled down as our group.
"It's an absolutely fantastic night for us, and it's a platform to kick on and grab that little play-off spot, and we've taken on a very good side."