An injury-time own goal from Wolves keeper Jose Sa completed a memorable comeback win at home to Wolves.
The Portuguese keeper could only divert Alexandre Lacazette's shot into his own goal late on, after Nicolas Pepe had earlier come off the bench to score a fine equaliser.
It had looked like being a frustrating night for the Gunners, after Hwang Hee-Chan capitalised on a Gabriel mistake to give the visitors the lead.
But we were eventually rewarded for laying siege to the Wolves goal, with a late winner which could prove huge in the race for the top four.