I always hated this strategy in every sports, here in Quebec we call this " La Trappe ". From a fan view, it's not entertaining. Secondly Arsenal is a offensive team (Arshavin,Walcott,Van persie ,Nasri etc,etc) I'm questionning my self why Arsène Wenger did this?
I found something interesting here
http://www.footanglais365.com/premier-league/article_495916_Newcastle-Arsenal-Interpol-enquete.shtml
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«En me renversant, on n'a abattu à Saint-Domingue que le tronc de l'arbre de la liberté, mais il repoussera car ses racines sont profondes et nombreuses» Toussaint Louverture.