ARSENAL fans held up 'Emery Out' signs after Eintracht Frankfurt took the lead in the Europa League clash.
The signs read: 'No Tactics. No Formation. Nowhere to Hide.'
There had been talk ahead of kick-off that Arsenal fans would protest under-fire manager Unai Emery.
There was nothing overtly anti-Emery - although TENS of thousands of fans stayed away in a sign at the current apathy of his stewardship.
But after Daichi Kamada scored his second in just under ten minutes to give the German side the lead, the mood turned.
Fans could seen holding up placards with the anti-Emery message plastered across it.
Earlier, another fan held up a sign that read: 'We Care, Do You?'
That is a reference to the Arsenal Supporters Alliance who wrote an open letter to owner Stan Kroenke this week, questioning the direction of the club.
It read: "There exist many issues raised in our first statement that remain unaddressed by the club... Until the club and especially the senior management structure is running efficiently, effectively and ambitiously, then few other issues can or will be satisfactorily resolved."
Arsenal would eventually lose against Eintracht Frankfurt, leaving them needing a point away to Standard Liege to reach the knockout stages.
And as the full-time whistle blew at the Emirates, Emery was pelted with loud boos and whistles by home fans.
Arsenal are in the midst of their worst run of form since 1992 - and are seven games without a win.