The 38-year-old has not featured for the Gunners since August 19 at Blackburn when he made a second high-profile error of the then fledgling season and will figure in the Champions League clash.
And Wenger revealed: "Lehmann will start in goal. His attitude has been fantastic and when you look at this man the one thing you cannot fault is he is a super professional. At the moment I expect him to play well on Wednesday. Jens´ long-term future depends on, when you are 38, what you call a long-term future."
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