Bournemouth overwhelmed Arsenal, taking an early lead when Charlie Daniels cut inside Hector Bellerin and stroked a shot past on-rushing keeper Petr Cech. Callum Wilson scored a penalty, and Ryan Fraser extended their lead with a goal for the Cherries before the hour mark.
Arsenal looked like it was going to lose its third away league defeat in a row withe the Gunner’s behind 3-0. But a late rally started with an Alexis Sanchez header and built the momentum with another Gunner’s goal from Lucas Perez, closing the lead to a single goal.
Bournemouth went down to 10 men when Simon Francis was sent off for a challenge on Aaron Ramsey and Arsenal capitalised as Olivier Giroud headed a 92nd-minute equaliser.
Arsenal manager Arsene Wenger: “At the start we suffered from the quality of Bournemouth. One team had over three days to recover and on top of that we suffered at the back.
“It was a physical test but we came back into the game and we showed we are mentally strong. I am happy to play every day but only if our opponent has done the same.”