Denilson will pull on an Arsenal shirt for the first time since September 12 tonight.
The Brazilian midfielder will start against Standard Liege after missing 14 first-team games with a back injury.
Denilson is one of five changes from the side which lined up at Sunderland on Saturday.
Arsenal team: Almunia; Eboue, Gallas, Vermaelen, Gibbs; Song, Fabregas, Denilson; Nasri, Vela, Arshavin. Subs: Mannone, Sagna, Rosicky, Eduardo, Walcott, Silvestre, TraoreCopyright 2013 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 24 Nov 2009