David Raya saved two penalties as Arsenal beat Porto 4-2 in a shoot-out to reach their first Champions League quarter-final in 14 years.
Declan Rice admits Arsenal need more experience in the Champions League after a disappointing defeat at Porto on Wednesday.
Mikel Arteta bemoaned a lack of aggression from his Arsenal side in the Champions League defeat at Porto.
Arsenal's aspirations to advance to the Champions League quarter-finals for the first time in 14 years were dealt a blow as they endured a heartbreaking last-minute loss in the opening leg of their last 16 encounter against Porto.
Holders Manchester City will face FC Copenhagen in the last 16 of the Champions League.
FC Barcelona navigate through a crucial phase, securing pivotal victories against Porto in the Champions League and Atletico Madrid in La Liga.