Schalk Burger, the International Rugby Board's player of the year, will line-up for the Barbarians against New Zealand at Twickenham on Saturday.
Burger comes into the Twickenham game in superb form
Burger will team up with his Springbok back row colleague AJ Venter.
They join an illustrious list of internationals including Australians Matt Giteau, Brendan Cannon, Dan Vickerman, Lote Tuqiri and Mat Rogers.
New Zealand scrum-half Justin Marshall, who was rested from the All Blacks' autumn tour, will captain the Baa-Baas.
He said: "It's a great honour not only to be part of the squad but to captain the side against my own country.
"It will certainly be a unique experience and I'm very much looking forward
to the game on Saturday."
Barbarians coach Bob Dwyer has a plethora of options in the back row with Burger, Venter and Australia's Phil Waugh.
But there will no British-based player in the side after English pair Mike Catt and Chris Jones and Saracens' French ace Thomas Castaignede all pulled out.
Sale loose forward Jones is recovering from an operation on his hand, London Irish three-quarter Catt has a damaged calf and Castaignede was not released by Saracens after only just returning from injury.
Dwyer was disappointed the trio had withdrawn but insisted the ethos of the Barbarians is about more than just selecting home players.
"The Barbarians is about picking players who want to play and who are
available to play and I think if we start to worry about where players came from
that would destroy the whole concept of the Barbarians," said Dwyer.
"It is an invitation side, you are invited to play and nearly 100% of guys
jump at the chance.
"We were very keen to play Chris Jones but four weeks ago it was decided he
couldn't go any longer without having an operation on his hand."
Backs: Mat Rogers (Australia), Werner Greef (South Africa),
Lote Tuqiri (Australia), Gcobani Bobo (South Africa), Sireli Bobo (Fiji), Chris Latham (Australia), Matt Giteau (Australia), Morgan Turinui (Australia), Justin Marshall (capt).
Forwards: Faan Rautenbach (South Africa), Bill Young (Australia), Andrea Lo Cicero (Italy), Tongauiha Soane (Tonga), Brendan Cannon (Australia), Gary Botha (South Africa), Albert Van Den Bergh (South Africa), Daniel Vickerman (Australia), Radike Samo (Australia), Phil Waugh (Australia), Xavier Rush (New Zealand), Schalk Burger (South Africa), AJ Venter (South Africa).