Wales and Lions wing Dafydd James has been called up to the Barbarians team to play against Wales at Bristol's Ashton Gate on Wednesday.
He replaces London Irish's Paul Sackey, who has been released for England duty by the Baa-Baas squad.
James has won 41 caps, but has not represented Wales since November 2002 after falling out with former national coach Steve Hansen.
The Baa-Baas have changed all 15 players who started against Scotland.
"I'm glad Dafydd has been selected for the Barbarians, it gives me a chance to have a look at him," said Wales coach Mike Ruddock.
"He's a great player who has been very unlucky with injuries, especially a very bad shoulder injury.
"The medical advice we took before selecting our summer tour party was that his shoulder needed some more work."
The Barbarians are captained by veteran Australia back Matt Burke, who is selected at fly-half.
Ireland's David Humphreys, who kicked 10 points in the 40-33 win against the Scots, makes way for Burke and has to be content with a place on the bench.
"I've played a bit at fly-half with the Waratahs and I'm really looking forward to it," Burke told BBC Sport Wales.
"It gives you the chance to broaden your scope and control a game.
"It's a great honour for me to captain a team as steeped in tradition as the Barbarians.
"We know we could have done better against Scotland although we got the win, but we feel we have the basis of a very good team."
Burke is currently looking for a club for next season, after failing to land a new contract with the Waratahs.
"I won't be playing rugby in Australia next year, although I am available for the summer Test matches," said Burke.
"At the moment I'm not limiting my options, although the prospect of playing in Europe is very exciting."
Darren Morris has been allowed to withdraw from the Wales squad for the game to concentrate on his Leicester commitments.
Dragons lock Peter Sidoli takes Morris' place on the bench, sitting alongside Ospreys hooker Huw Bennett after Steve Jones failed a fitness test.
Barbarians: Bruce Reihana (Northampton and New Zealand), Dafydd James (Harlequins and Wales), Damien Traille (Pau and France), Nathan Grey (Waratahs and Australia), Breyton Paulse (Stormers and South Africa), Matt Burke (Waratahs and Australia, capt), Neil de Kock (Stormers and South Africa), Ollie Le Roux (Sharks and South Africa), Matt Sexton (Ulster), Richard Bands (Bulls and South Africa), Brad Mika (Auckland Blues and New Zealand), Mark Connors (Northampton and Australia), Olivier Magne (Montferrand and France), Andre Vos (Harlequins and South Africa), Eric Miller (Leinster and Ireland).
Replacements: Anton Oliver (Otago and New Zealand), Cobus Visagie (Saracens and South Africa), Owen Finegan (ACT Brumbies and Australia), Aaron Persico (Agen and Italy), Mark Robinson (Northampton and New Zealand), David Humphreys (Ulster and Ireland), Thomas Castaignede (Saracens and France).