Arsenal always struggle at the Britannia Stadium and a multitude of defensive errors allowed Stoke City this time to find themselves 3-0 up by the break.
The Gunners were caught ball watching and completely stunned after a breach in their goal within 19 seconds.
The half time team talk must have been severe as Arsenal came back out with a strength and determination that had earlier been lacking.
Goals from both Santi Cazorla and Aaron Ramsey put the north Londoners in a stronger position but after going down to ten men due to Chambers being sent off, time ran out and the Potters gained a famous win.
Arsenal finished the weekend in sixth with their top four hopes dented and now have to pick themselves up in Europe – and here are five things Wenger needs to sort out.
Click on Sanchez to see what we think they need to do.
Arsenal fans. Is Wenger Arsenal’s problem? Or are his players letting him down? Let us know below, become a guest blogger or tweet us @LaFootyettes.