Arsenal lost more ground in the Premier League title race when they were beaten 2-1 by relegation-threatened Swansea City.
The result improves the Swans’ chances of avoiding the drop and they played well after falling behind in the 15th minute.
After Alexis Sanchez had hit the post, Arsenal took the lead when Joel Campbell stretched to turn the Chilean’s cross past Lukasz Fabianski.
It appeared as though Arsene Wenger’s side were on course for a routine win, but Swansea stunned the home fans in the 32nd minute when Wayne Routledge got between Hector Bellerin and Per Mertesacker after being set up by Jack Cork and slotted the ball past Petr Cech.
Just before half time Olivier Giroud hit the woodwork from 12 yards on the volley while in the 57th minute Mesut Ozil’s corner found Sanchez who flashed a shot just wide of the post.
The Gunners were fortunate not to fall behind in the 65th minute when Gylfi Sigurdsson got past Gabriel only to then fire his shot from a tight angle wide with Cech beaten.
Sanchez’s curling free-kick then hit the crossbar before the visitors took the lead with 16 minutes left when Sigurdsson whipped in a free-kick that Ashley Williams bundled home.
Arsenal threw everything at Swansea in the closing stages but could not force an equaliser and they remain six points behind Leicester City with only ten games of an incredible campaign remaining.