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A last-gasp goal by Olympiacos shocked Arsenal 2-1 on Thursday in the second leg of the UEFA Europa League last 32, earning the Greek side a 2-2 aggregate victory on away goals after extra time at the Emirates Stadium.
The home crowd were stunned when Pape Abou Cisse gave the Greek side a 53rd-minute lead from Mathieu Valbuena's corner.
Arsenal were short of ideas as they trailed on the night, and neither team could find the goal which would see them advance, triggering extra time.
Fatigue was evident in the closing stages, but a dramatic overhead kick by Pierre-Emerick Aubameyang in the 113th minute triggered celebrations from home fans.