Arsenal progressed to the UEFA Europa League final after defeating LaLiga outfit Valencia 7-3 on aggregate.
Arsenal made two changes from the first-leg, with Nacho Monreal and Lucas Torreira preferred while Los Che re-called Kevin Gameiro upfront.
Trailing 3-1 from the first-leg, Valencia got back in the overall contest 10 minutes in after Gameiro slipped in at the back post to finish past Petr Cech.
The joy lasted 17 minutes, as Pierre-Emerick Aubameyang volleyed home the equaliser from outside the box after being set up by Alexandre Lacazette.
After a bright opening, Valencia were back to square one but kept pushing forward close to halftime with a numerous shots at Cech.
The task became more tougher for Los Che shortly after the break when Lacazette peeled away from his marker to find the bottom corner from Aubameyang's side-field pass.
A minute later, Marcelinho restructured their stall with a substitution of Carlos Soler who replaced Cristiano Piccini.
Los Che levelled on the night after Gameiro helped a goal-ridden shot from Daniel Wass over the goal-line on 58 minutes.
However, the Gunners' advantage increased on 69 minutes after Aubameyang ran to the near side to tap home from close-range
The Gabonese forward completed his hat-trick in the 89th minute, as a spate of passes set-up Aubameyang to blast the roof of the net from a tight angle to round off the scoring as the London outfit advance to the final.