Arsenal have qualified for the last 16 of the Champions League after beating Olympiakos.
The Gunners recorded a 3-0 win away to the Greeks, with Olivier Giroud scoring a hat-trick.
With all group stages now complete, the five teams they can face can be revealed.
Arsenal finished second in their group, and cannot be drawn against either Manchester City or Chelsea, who both won their groups, nor Bayern Munich who were in theirs.
The teams the Gunners can face are Barcelona, Real Madrid, Zenit St Petersburg, Wolfsburg, or Atletico Madrid.
The three Spanish teams are clubs Arsenal would be desperate to avoid, Barcelona especially after recent eliminations suffered against them.
Wolfsburg showed their danger against Manchester United last night but are beatable - and would see the club re-united with Nicklas Bendtner, providing he is not sold by the German side in January.
Zenit St Petersburg would be notable for facing former Tottenham boss Andre Villas-Boas, who is in his final season with the Russian side.