Frenchman Olivier Girou is playing in the attack instead of Alexandre Lacazette, and Arsene Wenger may be relaxing some players in preparation for Sunday's tough Chelsea match.
Wenger is also pleased with Peter Cheek, Laurent Kucielny, Aaron Ramsey, Massoud Ozil and Danny Welbeck, while we may see Alexis Sanchez and Jack Wilsher.
Arsenal are 11th in the Premier League after four matches, with two wins and two defeats, one of them 0-4 against Liverpool in the third round, while the latter won 3-0 at Bournemouth.
While koln remain in 18th place and the last in the Bundesliga without any point!
The match will be held on Thursday, September 14 and will begin at 22:05 pm Mecca time at the Emirates Stadium of the Arsenal team
BEIN SPORTS broadcast Arsenal vs Cologne live broadcast today.