Leading 4-1 from last week’s first leg at home, they fell behind 2-0 to CSKA Moscow on Thursday.
However, as CSKA pushed for the third goal that would have sent them through, Arsenal hit back with two counter-attacking goals to level the scores on the night and go through 6-3 on aggregate.
Here’s a look at how the Gunners performed in Thursday’s 2-2 draw.
ARSENAL (4-5-1)
Petr Cech – 7: Pulled off good saves in the build-up to CSKA’s first two goals, and another soon after the second.
Hector Bellerin – 6: The Spanish right-back was targeted at times by Moscow’s attack, but stood up to the challenge. Below his best in attack.
Shkodran Mustafi – 4: Another shaky display from the German. Failed to react as his runner slipped in to score CSKA’s first.
Laurent Koscielny – 5: The lack of leadership in defence was visible early on, but the Frenchman grew into the game as Arsenal looked to hold on.
Nacho Monreal – 4: Both CSKA goals came from his flank, first when he was beaten on a cross and then when he didn’t react as Cech saved a long-range shot.
Aaron Ramsey – 6: Got his customary Europa League goal, although he wasn’t at his best until the last 20 minutes as Arsenal looked to counter.
Mohamed Elneny -8: Arsenal’s best player in midfield, running his socks off. Delivered beautiful assists for both of Arsenal’s goals.
Jack Wilshere – 4: Wilshere’s form from the start of 2018 has disappeared, and on Thursday he often hindered rather than helped Arsenal’s attack.
Mesut Ozil – 5: If it hadn’t been for Arsenal’s late fight-back, Ozil would yet again have been the target of criticism. Below-par performance.
Alexandre Lacazette – 5: Denied the service he needed to thrive, but also never looked like making an impact. Was going to be subbed off even before Arsenal scored.
Danny Welbeck – 7: Up until his goal, Welbeck hadn’t been having the best game. But his strike was superb, and suddenly he was everywhere, including helping his defence.
SUBSTITUTES
Callum Chambers – 6: Trusted to do a better job in midfield than Wilshere, and repaid that faith as he helped solidify Arsenal in the middle of the park.
Alex Iwobi – N/A: Fluffed his lines when presented with a glorious chance to put the tie to bed. A willing runner in attack otherwise, adding threat to Arsenal’s counters.