Alex Oxlade-Chamberlain and Lukas Podolski are available for Arsenal's Premier League game against West Ham after they overcame their respective illnesses.
Manager Arsene Wenger has a problem in midfield as Mikel Arteta (calf), Francis Coquelin (hamstring), and Tomas Rosicky (calf) are all out.
Defensive midfielder Abou Diaby (thigh) will have a test, but forward Gervinho is away at the African Nations Cup and goalkeeper Lukasz Fabianski out with a foot injury.
Provisional squad: Szczesny, Gibbs, Vermaelen, Mertesacker, Sagna, Cazorla, Diaby, Walcott, Wilshere, Giroud, Mannone, Koscielny, Ramsey, Podolski, Oxlade-Chamberlain, Santos, Arshavin, Jenkinson.
Reading boss Brian McDermott praised a clinical second half performance which sent the Royals through to the last 16 of the FA Cup.
Brighton, Reading and Aldershot have some big matches this weekend in the Fourth Round of the FA Cup.
A football fan has put himself at the centre of a flurry of Twitter attention after betting his bank details on the outcome of a match.