Out of the blue, Manuel Almunia and William Gallas have joined Andrey Arshavin, Alex Song and long-term absentees Robin van Persie, Kieran Gibbs and Johan Djourou on the sidelines.

Below is the 18-man squad which will travel to Porto for tomorrow’s Champions League game, with the Gunners welcoming Mexican Carlos Vela back after a knee problem. It is certain that Lukasz Fabianski will take over from Manuel Almunia in goal with Sol Campbell making his Champions League debut for this season.

Lukasz Fabianski
Vito Mannone
Nicklas Bendtner
Carlos Vela
Theo Walcott
Samir Nasri
Denilson
Aaron Ramsey
Tomas Rosicky
Abou Diaby
Cesc Fabregas
Gael Clichy
Thomas Vermaelen
Emmanuel Eboue
Mikael Silvestre
Sol Campbell
Armand Traore
Bacary Sagna