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Scotland get started on the road to Brazil 2014 this weekend.
Serbia are the visitors to Hampden. It's the first time Scotland have played the Balkan state in their current form.
Craig Levein is a bit short of defenders following injuries to Russell Martin, Charlie Mulgrew and Danny Fox.
Huddersfield left back Paul Dixon has been called up and is expected to start.
Scotand have only lost 2 of their last 11 competitive home matches.