Arsenal face Villarreal on Thursday night looking to overturn a first-leg deficit to reach the Europa League final.
The Gunners lost 2-1 in Spain last week and will need to see off former head coach Unai Emery if they are to reach the showpiece event in Gdansk.
Here we take a look at some of the key talking points heading into the fixture.
Behind Emery lines
Aubameyang’s heroics in 2019 came under the stewardship of Emery, who took Arsenal all the way to the final that year only to lose to Chelsea. The Spaniard lasted just 18 months after replacing Arsene Wenger at the Emirates Stadium and will make his first return on Thursday night. He oversaw a victory for current side Villarreal in the first leg but, having been two goals up and enjoying a numerical advantage for a portion of the game, he could be forgiven for being annoyed that his side do not have a bigger lead to defend.
We must protest
Arsenal lost their last home game, falling to a 1-0 defeat by Everton as fans protested against owner Stan Kroenke outside of the Emirates Stadium. Plans are afoot for a similar gathering ahead of the Villarreal tie, with manager Mikel Arteta happy for the supporters to have their voices heard in the right way. Both manager and players insisted the performance against the Toffees was not impacted by the outcry outside the ground but further rallying against Kroenke could be highlighted if Arsenal ultimately come up short.
Pick and fix for Arteta
Arteta has some selection dilemmas to address ahead of the game, after his surprise move to a false-nine system backfired in the first leg. Having both Aubameyang and Alexandre Lacazette fit means he will not have to try something as unexpected this time out. Kieran Tierney’s timely recovery from a knee injury is likely to have him reinstalled at left back, allowing makeshift defender Granit Xhaka to move back into the midfield and partner Thomas Partey with Dani Ceballos suspended.