Gunners manager Arsene Wenger was understandably seeking a big response from his players after the 6-0 thrashing at the hands of Chelsea last weekend, but the night got off to a bad start as Swansea took the lead through Ivorian striker Wilfried Bony.
But Arsenal fought back in the second half and two quickfire goals from Lukas Podolski and then Olivier Giroud turned the game on its head, giving the Gunners a 2-1 lead which they looked like they would hold on to until the final whistle.
Yet with time running out, Swans midfielder Leon Britton went on a driving run into the Arsenal box, and in a scene akin to pinball, the ball ricocheted onto the shins of French midfielder Flamini and cannoned back into the net, leaving Arsenal with just a point from the game.
It was a match that most Arsenal fans would've expected to win, but rotten luck has resulted in two dropped points. For Wenger, when it rains, it pours - but they now must look to Saturday's huge game against title rivals Manchester City at the Emirates Stadium.