Dani Ceballos hit a 91st winner as Arsenal defeated Sheffield United on Sunday to reach the FA Cup semifinals.

The on-loan midfielder slotted home a low, angled drive to win the tie in dramatic fashion, after David McGoldrick's hooked finish just a few minutes earlier looked to have ensured extra time at Bramall Lane.

The Gunners had led from midway through the first half when Nicolas Pepe had slotted home a penalty after Alexandre Lacazette had been fouled in the box by Chris Basham.

They had earlier had a reprieve when John Lundstram's close-range header following a corner was ruled out because the scorer was offside.

The home side also had another effort chalked off in the second half when John Egan poked the ball in after McGoldrick had strayed beyond the last defender.

There was further bad news for Lundstram and Sheffield United with the midfielder having to be substituted before the break because of a shoulder injury.

Arsenal also failed to make it through the game unscathed, with centre-back David Luiz - who had only just returned from suspension - limping out to add to their already lengthy injury list.