Arsenal should have ensured they acquired an imposing central defender in the mould of Manchester United captain Nemanja Vidic before the close of the transfer window last week, according to the club's former manager George Graham.
The Gunners endured a frustrating summer of transfer activity as Arsene Wenger strived desperately to reinforce his squad with the vast funds available, and it was only on deadline day that things really began to kick into gear.
Summer acquisitions Yaya Sanogo and Mathieu Flamini were joined on the final day of the window by Emiliano Viviano, a loan signing from Palermo, and Germany international Mesut Ozil - who signed for a club record fee.
Graham, however, believes Viviano is not quite the experienced shot-stopper Arsenal really needed, and claims they should have acquired a centre-back in the mould Manchester United star Vidic to supplement their creative reinforcements.
"They could have done with a more experienced goalkeeper," the league winning boss told talkSPORT.
"The goalkeeper they have got is in a learning process still and most teams that win the Premier League always have a very strong centre-half like a [Nemanja] Vidic at Manchester United."
Ozil, meanwhile, is set to make his Arsenal debut on Saturday against Sunderland.
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