Aubameyang, so frequently the Gunners’ saviour, looked like he had once once more rescued his side from an abject showing when his high-quality scissor kick – which cancelled out Pape Abou Cisse’s opener – put them in the driving seat with seven minutes left of extra time.
But the visitors punished lousy set-piece defending for a second time on the night as Youssef El Arabi poked home in the front of their raucous visiting fans.
And there was nonetheless time for the unmarked Aubameyang to in some way screw huge from 5 yards out and condemn Mikel Arteta’s side to their first defeat of 2020.
For large durations of a flat game a full-strength Arsenal XI were frustrated, irritating and feeble in front of goal – with their first shot on target no longer arriving until the 77th minute.
Olympiakos were infrequently buccaneering in their approach, specifically considering they had lost the first leg in Athens, but carried out their gameplan perfectly to steal a famous win and progress to the final 16.