Wenger hoping to lure Cahill or Mertesacker to Arsenal
The Werder Bremen defender has been a target for Wenger in the past but a move has never eventuated. It is believed that the French tactician wants to bring in a new centre-back this week after having another key defender in Sebastien Squillaci go down with injury.
Whilst Cahill will cost the North Londoners plenty, Mertesacker is a cheaper proposition as he would only cost about £10million.
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