SWANSEA City were knocked out of the FA Cup after their stubborn resistance at the Emirates was broken by a late goal from Jack Wilshere.
The Swans faced a maelstrom of Arsenal pressure in the second half and looked set to force extra time after a spirited defensive effort saw them frustrate the Gunners for long periods.
But Arsenal secured their passage to the fourth round when Wilshere slammed the ball in from the edge of the area in the 86th minute to deny Swansea a second famous win of the season in North London.
Michael Laudrup's men had won 2-0 at the Emirates last month and, after forcing this third round replay with a 2-2 draw at the Liberty, they entered the tie with confidence.
Winless in their last three matches and eager to appease their restless fans, Arsenal made a purposeful start with Olivier Giroud missing two chances in the first five minutes.
It took a little while for Swansea to settle into their characteristic passing groove, but they were inches away from taking the lead when Kyle Bartley headed Wayne Routledge's cross on to the bar midway through the first half.
Thomas Vermaelen and Kieran Gibbs both went close for Arsenal, while Jack Wilshere was a driving force from midfield for the hosts.
Vermaelen had another chance moments before the break, but his shot on the turn from a corner was saved superbly by Michel Vorm to keep the game goalless at half time.
The Gunners had a glorious opportunity to score less than five minutes into the second half, as Abou Diaby sent Theo Walcott scampering clear with a fine through ball.
The England forward pressed the accelerator and, despite the heavy attention of Chico Flores, he dinked a shot over Vorm but saw the ball dribble wide.
This prompted a torrent of pressure from the Gunners, with Wilshere forcing Vorm into a spectacular stop before Danny Graham chested Walcott's follow up off the line.
There were further chances for Wilshere, Giroud and Walcott but, through a combination of stoic Swansea defending and maladroit Arsenal finishing, the match remained scoreless.
Despite having to weather a seemingly endless storm of pressure, the Swans were close to snatching a late winner as their man of the match Flores headed into the side netting.
Extra time was beginning to look inevitable but, with four minutes left, Wilshere was fed by Giroud and powered in a left-footed drive past Vorm to set up a fourth-round meeting with Brighton.