We booked our place in the final of the Europa League on Thursday night with a thrilling 7-3 aggregate win over Valencia.
But what did we learn from our victory at Mestalla Stadium? Read on to find out...
MAGICAL MESTALLA
It's one of Spain's oldest stadiums, and the famous old venue was rocking for this last stop on the road to Baku, but it was to the sound of the travelling Arsenal fans. Unai Emery – who spent four years as manager here – spoke about the 'special' qualities of the venue in his pre-match press conference, while Shkodran Mustafi was also telling his team-mates about what to expect of his former home during training on Wednesday night.