James Morrison says he cannot wait to make his Scotland debut against South Africa on Wednesday.
The West Brom midfielder has been cleared by Fifa to switch countries after representing England at youth-team level.
The welcome news ended a three-month wait for Morrison, who feared his international career was over.
"I'm very happy this has all been sorted now," Morrison told the Daily Record.
"It has been a long wait and it was frustrating not knowing what was happening so I just can't wait to get going.
"I was a bit concerned when it took so long it wouldn't go my way. But now I've got clearance I just want to get out there."
Boss Alex McLeish is expected to use the Pittodrie friendly as a warm-up for the forthcoming Euro 2008 qualifying games and will be keen to take a close look at the former Middlesbrough man.
"It's not a friendly to me. I want to show what I can do ahead of these vital games coming up. We want a big performance against South Africa," he added.