The 38-year-old Germany international, who is out of contract in the summer, is out of favour with Gunners boss Arsene Wenger with Manuel Almunia expected to continue as first choice at the Emirates Stadium.
Dortmund general manager Hans-Joachim Watzke said at a press conference on Friday: "Jens has said that he will consider it and his answer should come in the foreseeable future,"
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