Arsenal will hand fitness tests to midfielders Abou Diaby and Tomas Rosicky (both ankle), as well as utility man Emmanuel Eboue (knee).
Midfielder Alex Song is available again after being suspended for the midweek Carling Cup win at Tottenham.
Captain Cesc Fabregas (hamstring) and centre-half Thomas Vermaelen (Achilles) will both miss out, but, along with left-back Kieran Gibbs (foot), could return against Chelsea next weekend.
Theo Walcott, Robin van Persie (both ankle), Nicklas Bendtner (groin) and Aaron Ramsey (leg) remain sidelined.
West Brom defender Gabriel Tamas and winger Jerome Thomas are fitness doubts for the Baggies.
Tamas is struggling to overcome a calf problem and, if he is ruled out, is likely to be replaced by Pablo Ibanez.
Ibanez's only previous league start was in the 6-0 reversal at Chelsea. Thomas is suffering from a groin injury and Cameroon international Somen Tchoyi is on standby.
Arsenal (from): Almunia, Clichy, Squillaci, Koscielny, Sagna, Arshavin, Song, Wilshere, Diaby, Nasri, Chamakh, Fabianski, Djourou, Denilson, Lansbury, Vela, Eastmond, Emmanuel-Thomas, Eboue, Rosicky.
West Brom (from): Carson, Olsson, Brunt, Thomas, Shorey, Mulumbu, Odemwingie, Fortune, Tamas, Scharner, Jara, Myhill, Tchoyi, Ibanez, Barnes, Bednar, Reid, Dorrans, Zuiverloon, Meite.