Arsene Wenger saw his Arsenal side secure top spot in their Europa League group despite falling to defeat at Cologne thanks to what he sarcastically deemed a "very nice penalty".
The Gunners will go into next month's draw as Group H winners as a goalless stalemate between Red Star Belgrade and BATE Borisov meant the 1-0 loss at the RheinEnergieStadion was still enough to give them an unassailable four-point lead.
A drab game here was settled courtesy of a controversial second-half penalty as Mathieu Debuchy was adjudged to have fouled Sehrou Guirassy in the area when in truth, there was minimal contact.