The Barbarians have revealed five more players, headlined by All Blacks utility back Luke McAlister, to represent them against England on May 30 and Australia on June 6.
McAlister is joined in the latest batch of invitees by former Wallaby Justin Harrison, New Zealand's greatest ever try-scorer Doug Howlett, Samoan centre Seilala Mapusua and All Blacks five-eighth Nick Evans.
The Barbarians have already confirmed that Rocky Elsom, Jerry Collins, Justin Marshall and Sonny Bill Williams will all feature in the historic clash.
The Barbarians have now named more than half of their squad and are due to add another 11 players before they meet the Wallabies.
Barbarians squad so far: Luke McAlister (New Zealand), Doug Howlett (New Zealand), Sonny Bill Williams (uncapped), Seilala Mapusua (Samoa), Justin Marshall (New Zealand), Nick Evans (New Zealand), Rocky Elsom (Australia), Martin Corry (England), Sebastien Bruno (France), Jerry Collins (New Zealand), Justin Harrison (Australia), Serge Betsen (France).
As head coach Stuart Lancaster polishes the axe he will soon wield over his World Cup training squad, Exeter Chiefs coach Rob Baxter has backed Jack Nowell, Henry Slade and Luke Cowan-Dickie to be given a stay of execution.
Italy Under-20s held off a late Samoa blitz to retain their place in the World Rugby U20 Championship on Saturday and head coach Alessandro Troncon believes the experience will have served as a valuable lesson for his young troops.