Arsenal could again be without forward Theo Walcott through illness for the Europa League tie in Cologne.
Walcott missed the Premier League win over Tottenham and did not train outside at London Colney on Wednesday morning as the rest of the squad prepared for the trip to Germany, where striker Olivier Giroud should be involved following his thigh injury along with goalkeeper David Ospina, who has recovered from a groin problem, and forward Danny Welbeck.
With the Gunners already qualified out of Group H for the knockout stage, manager Arsene Wenger is expected to again give his young players a chance to impress, with the likes of 17-year-old Reiss Nelson, Ainsley Maitland-Niles, Eddie Nketiah and Joe Willock all expected to feature in the squad.
Arsenal squad: Ospina, Holding, Mertesacker, Chambers, Debuchy, Maitland-Niles, Nelson, Elneny, Coquelin, Wilshere, Welbeck, Macey, Willock, Nketiah, Giroud, Osei-Tutu, McGuane, Sheaf, Akpom, Da Silva
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