Even without playing, Manchester United have found themselves embarrassed by a 3-0 defeat.
Arsenal loanee Joel Campbell and Alejandro Dominguez proved the Greek heroes in that particular tale - but the latter was not in such blistering form on Sunday, missing a spot-kick as his side were thrashed by local rivals Panathinaikos.
That penalty would have handed Olympiakos the lead. Instead, however, they went on to concede three goals and see their 27-game unbeaten league run come to a rather sudden end.
Amazingly, Panathinaikos are still 24 points behind Olympiakos, while the game was marred by a hostile atmosphere that caused several delays to the action.
But the visitors still had enough firepower about them to beat the Greek champions by three goals in their own backyard, putting Man United's defeat into even grimmer context.
"We did not play like we should but we should not linger over this," midfielder David Fuster said. "It was a bitter moment in an otherwise very good season."
A 'glass half-full' perspective might see this result viewed as good news for Man United, of course, with Olympiakos clearly proven to not be infallible ahead of next month's visit to Old Trafford.
The defeat does, however, leave David Moyes with plenty to ponder. If the fourth-best team in Greece could beat them 3-0 at the Karaiskakis Stadium, why couldn't United?
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