Has Unai Emery got it spot on? If it is somewhat clichéd to say that a 2-0 lead is a dangerous scoreline in any game it is certainly true that the Arsenal head coach faced something of a dilemma in naming his side to take on Napoli.
Do Arsenal hold what they have, pack the midfield and defence and look to ensure they can hold firm or do they chase the away goal in the Stadio San Paolo that would leave Napoli needing four to qualify.
It appears that Emery might have made something of a compromise, but it is one that is popular with Arsenal fans. The most significant name in the starting lineup is Lucas Torreira, who has shaken off the pain in his groin that forced him to be withdrawn early against Watford on Monday night.
The Uruguayan had also seen the injury flare up in the first leg but his outstanding performance that night, which included forcing an own-goal of Kalidou Koulibaly that gave the Gunners their two-goal lead, means that any decision to gamble with his fitness at least comes with the caveat that Arsenal know the damage he can do to Napoli.
The man who in all likelihood has missed out to accommodate Torreira is Mesut Ozil, another who excelled in the first leg but once again he finds himself left out of the side for a major away game.
Elsewhere Sokratis Papastathopoulos returns to the side amid a two-game Premier League suspension. Both he and Granit Xhaka are under threat of further suspensions tonight; if either picks up a yellow card they will be banned for the first leg of the semi-finals.
Here's how Arsenal fans are reacting to Emery's lineup
Keep up to date with the latest news, features and exclusives from football.london via the free football.london app for iPhone and Android .
Available to download from the App Store and Google Play .
