Arsene Wenger is eyeing up a transfer window swoop for Barcelona's out-of-favour right-back Dani Alves.
Barcelona coach Tito Vilanova has often favoured either Adriano Correia or Martin Montoya in the role this season, pushing Alves down the pecking order.
With the Catalans nine points clear at the top of La Liga, Vilanova is unlikely to change his winning set-up and the situation has put Wenger on alert, according to Spanish newspaper AS.
The experienced 29-year-old Brazilian, who has won three league titles and two European Cups at Barcelona, could replace contract rebel Bacary Sagna, who has been linked with a £10m move to Paris St German.
The French right-back does not want to sign the Gunners' offer of a one-year extension to his contract, which runs out in 2014.
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