The Gunners' firepower has been lacking in the early stages of the season, having found the back of the net just twice in the opening three games.
Wenger's side couldn't capitalise on a number of good chances created during Arsenal's goalless draw against Liverpool on Monday, highlighting a need for a new frontman.
And while Wenger has been looking to sign Real Madrid star Karim Benzema, the Frenchman has seemingly committed his future to the Bernabeu saying it is his "home".
Arsenal have since turned their attentions to other targets including Paris Saint-Germain forward Edinson Cavani.
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Arsene Wenger must buy a striker according to George Graham
And Graham claims Wenger must bring in a striker capable of scoring 25 goals this season to lead Arsenal's title charge.
“Arsenal need an out and out goalscorer," Graham told talkSPORT.
“They’re not making enough chances up front and they’re not taking their chances either
“They need a striker who can get 25 league goals a season if they want to win the Premier League - but where are they?
“We’re all looking around the country looking for the great strikers and great centre halves - they’re already with top clubs and they’re not available."
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