Record breaker: Is Wenger the greatest ever Arsenal manager?

Arsene Wenger today becomes the longest serving manager in Arsenal's history, eclipsing the milestone of George Allison, who was at the helm from June 1934 then during the War years to May 1947.

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Here, we take a look back at Wenger's greatest achievements in charge of the Gunners and look at how some of the other Arsenal managers shape up.