With Fabianski and Szczesny ruled out through injury, Lehmann stated he was in talks to help cover the injury crises, although he is currently retired.
Wenger said: “Lehmann is training with us and will sign for the rest of the season. We have no cover in the Premier League, so that is why I decided to bring Jens back. He has not signed but it [a contract] has been agreed.”
Lehmann will sign for free and could feature in Arsenal’s squad for their game against West Bromwich Albion on Saturday.
