Arsenal’s 100% record in the Europa League this season ended as Bruno Duarte scored a 91st-minute equaliser for Vitoria Guimaraes in Portugal.
Shkodran Mustafi had provided the Gunners with the breakthrough with an unmarked header from a Nicolas Pepe free-kick with 10 minutes to go.
But Guimaraes came to life in the closing stages and former Spurs man Marcus Edwards’ cross from the right caused confusion in the Arsenal defence, allowing Duarte to equalise with a scissor-kick.
The result was Arsenal’s fourth consecutive draw in all competitions in a turbulent week that saw Granit Xhaka stripped of the captaincy.
Arsenal will still qualify for the last 32 on Thursday if third-placed Standard Liege lose to Eintracht Frankfurt.
More to follow.