By Nick Teale
Arsène Wenger makes two changes to the side that defeated Stoke City at Emirates Stadium last weekend with the injured Emmanuel Eboue and Tomas Rosicky dropping out of the side.
Alex Song replaces Rosicky in midfield while Walcott comes in for Eboue.
Alex Song, Denilson and captain Cesc Fabregas are the Gunners' midfielders with Walcott, Samir Nasri and Andrey Arshavin making up the front three.
Arsenal team in full: Almunia, Sagna, Gallas, Vermaelen, Traore, Fabregas, Denilson, Song, Walcott, Nasri, Arshavin
Substitutes: Fabianski, Silvestre, Diaby, Ramsey, Wilshere, Eduardo, Vela