Arsenal are without five first-team players due to injury as they head to Portugal for the first leg of their Champions League tie against Porto.
Defender William Gallas (back), midfielder Alex Song (knee) and Andrei Arshavin (hamstring) were all missing from the 18-man squad which left Luton Airport on Tuesday afternoon, as were goalkeeper Manuel Almunia and striker Eduardo (hamstring).
The Gunners were already without Robin van Persie, Kieran Gibbs and Johan Djourou.
Sol Campbell looks set to make a first Champions League appearance since the 2006 final defeat to Barcelona.
Asked if the injuries meant Campbell would play, Arsenal manager Wenger said: ”It’s a possibility that I don’t rule out at the moment because if he does not play it means two left-footed players in that position (Thomas Vermaelen and Mikael Silvestre). It would mean he can show his signing was worth doing and he can help us in going through to the last eight.”
Speaking about Almunia, Wenger added on Sky Sports News: ”Almunia already had a twisted finger and made it worse and I did not want to take a risk.”