Arsenal will discover their next Champions League opponents when the draw for the knockout stage is made in Nyon, Switzerland on Monday.
Arsene Wenger's side finished second behind Borussia Dortmund in Group F and will face a group winner in the last 16.
However, they cannot play teams from their own football association at this stage of the competition - nor a team they have already faced in the group stage - so that rules out Manchester United, Chelsea and Dortmund.
Arsenal's possible opponents are:
FC BarcelonaReal MadridBayern MunichParis Saint-GermainAtletico Madrid
Read on to see how they qualified...
FC Barcelona BarcelonaThe Spanish champions eased through their group with 13 points from a possible 18 under new manager Gerardo Martino. Arsenal met Barcelona in the last 16 in the 2011/12 season with the Catalan side winning 4-3 on aggregate. Real Madrid Real MadridCarlo Ancelotti's team have arguably been the most impressive side in the Champions League so far, scoring 20 times with Portuguese star Cristiano Ronaldo netting a record nine goals in the group stage. Arsenal beat Madrid 1-0 on aggregate the last time the two sides met. Bayern Munich Bayern MunichThe holders, who knocked out the Gunners last season, sealed their passage to the knockout stages after just four games. But Pep Guardiola's team came close to finishing second in Group D after losing 3-2 to Manchester City in their final game. Paris Saint-Germain Paris Saint-GermainThe French side had already confirmed their place in the last 16 going into the final round of matches and were able to rest star striker Zlatan Ibrahimovic, who netted eight times during the group stages. Atletico Madrid Atletico MadridAtletico Madrid eased through Group G without a defeat, beating former holders FC Porto twice along the way. Los Rojiblancos have the joint best defensive record in the competition so far, conceding just three goals.
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