Arsenal travel to France to take on Ligue 1 title holders Montpellier.
Arsenal will be without first-choice goalkeeper Wojciech Szczesny for their Champions League opener against French champions Montpellier.
After missing two games, Szczesny returned for the 6-1 thrashing of Southampton at the weekend but has been ruled out with an ankle injury.
Vito Mannone will again deputise, while Abou Diaby (hip) is in the squad.
Tomas Rosicky (hamstring), Jack Wilshere (ankle), Bacary Sagna (leg) and Emmanuel Frimpong (knee) are out. (BBC Sport)
Montpellier: Jourdren; Bocaly, Yanga-Mbiwa, Hilton, Bedimo; Estrada, Saihi; Belhanda, Cabella, Mounier; Camara: SUBS: Pionnier, Marveaux, Herrera, Congre, Ait-Fana, Stambouli, Jeunechamp
Arsenal: Mannone, Jenkinson, Mertesacker, Vermaelen, Gibbs, Arteta, Diaby, Cazorla, Gervinho, Podolski, Giroud: SUBS: Shea, Koscielny, André Santos, Walcott, Oxlade-Chamberlain, Ramsey, Coquelin
Compare ticket prices for the upcoming El Clasico matches between Real Madrid and Barcelona. Buy Real Madrid and FC Barcelona tickets for the first El Clasico of the season at the Nou Camp on 7 October and many more La Liga matches with the leading ticket comparison site.