The 35-year-old is currently training with the Gunners and has recenlty been linked with Manchester United.
Wenger said: “I do not know yet, I have not really thought about that.
“At the moment, we have four centre-backs and we will always have four.
“If one would go, then I would consider it, but at the moment we are four, so I have no need to sign anybody else.”
Wenger added: “I love Sol Campbell and the fact he came back here and wanted to practice with us shows he loves the club as well.
“You never say never in these kinds of situations.”
