Arsenal boss Arsene Wenger has told Philippe Senderos he can re-establish himself this season.
Wenger said: "His position is we have four centre-backs and he is one of them because Djourou is out for nearly the season.
"In this job you have always to be ready and the day you get the chance you can do well.
"If you aren't ready, everyone will say he's not good enough for Arsenal. We'll give him a chance."