Per Mertesacker returns to the Arsenal starting XI for their crucial Premier League encounter against Leicester City with Gabriel Paulista ruled out with a hamstring injury.
The Germany international has been among the substitutes since his sending-off against Chelsea but starts alongside Laurent Koscielny against the Foxes.
Francis Coquelin is the only other change for the Gunners, replacing Mathieu Flamini, while Danny Welbeck is among the substitutes for the first time this season after a lengthy injury lay-off.
Leicester, meanwhile, remain unchanged from the side that beat Manchester City 3-1 at the Etihad Stadium last time out
Arsenal team: Cech; Bellerin, Mertersacker, Koscielny, Monreal; Coquelin, Ramsey; Oxlade-Chamberlain, Ozil, Alexis; Giroud. Subs: Ospina, Chambers, Flamini, Elneny, Campbell, Walcott, Welbeck.
Leicester team: Schmeichel; Simpson, Morgan, Huth, Fuchs; Mahrez, Kanté, Drinkwater, Albrighton; Okazaki, Vardy. Subs: Subs: Schwarzer, King, Gray, Ulloa, Dyer, Wasilewski, Chilwell.
- Goal