Aston Villa 2 Burnley 1: Substitute Stewart Downing's extra-time goal sealed a Carling Cup quarter-final spot for 10-man Aston Villa and ended the challenge of Burnley at Villa Park.
Burnley defender Clark Carlisle had cancelled out sub Emile Heskey's opener with just a minute of normal time remaining.
Villa then had winger Marc Albrighton sent off for a professional foul four minutes after Downing had scored but last season's beaten finalists held on to reach the last eight.
Skipper Nigel Reo-Cooker should have put Villa ahead after 24 minutes when Young's low cross left him with only Grant to beat six yards out.
But the midfielder side-footed his shot and the keeper was able to save.
Burnley came close to taking the lead after 55 minutes when Martin Paterson fired a low cross-shot just past the far post.
Villa finally broke the deadlock after 86 minutes through Heskey.
Albrighton released Young down the right and his low centre was side-footed home from close range but Burnley forced extra-time when Carlisle headed in a Ross Wallace cross.
Villa restored their lead after six minutes of the first half of extra-time.
Downing was allowed time to check back onto his favoured left foot and, although Grant got a hand to the ball, he could not stop his fierce shot from entering the net.
Villa were reduced to 10 men after 110 minutes when Albrighton brought down Burnley substitute Wade Elliott as he raced through on goal but the hosts held on to book their place in the next round but not before defender Carlos Cuellar had cleared Chris Iwelumo’s header off the line.