Bardsley will fly out with the rest of Craig Levein's team to the Czech Republic this afternoon for the Euro 2012 qualifier.
The defender - who had a spell on loan with Rangers in 2006 - was born in England but qualifies through a Glaswegian father.
Call up: Sunderland defender Phil Bardsley (left) has joined up with Scotland
Levein confirmed Bardsley was called up as cover with Alan Hutton an injury doubt.However, he is hopeful both Hutton and goalkeeper Allan McGregor will bepassed fit.
On Bardsley, Levein said:'It's been a bit rushed to be honest. We've been aware of his eligibility for a while but it was just a matter of finding out whether he was going to commit to Scotland.
'We found out he had a change of heart from a couple of years ago andhe's desperate to be involved. He is another young but experienced player who fits the profile and I'm pleased to have him on board.'
Bardsley said: 'I got the call on Monday and it was a bit of a mad rush yesterday getting the paperwork sorted. I'm delighted to be here and hopefully I'll be involved in the games.
'I'm in shape, I trained today and I'm raring to go if called upon. I'm proud and my father and my family will be proud. They will be delighted I'm here and part of this campaign.'
Meanwhile, Levein refused to be drawn on speculation that Kenny Miller will be dropped for the clash in Prague. He said he would not name the team until 24 hours before the game.
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