Arsenal wrapped up first place in Group H of the 2017-18 UEFA Europa League despite losing 1-0 to Cologne on Thursday evening.
Sehrou Guirassy won a penalty for the German hosts around the hour mark and stepped up to slot home the spot kick, moving the Bundesliga outfit off the bottom of Group H and up to a tied for second in points.
Gunners manager Arsene Wenger fielded a more experienced lineup, and despite the loss, BATE Borisov and Red Star Belgrade's draw in Belarus means they can't be caught at the Group H summit.