They will be replaced by Sharks number eight Ryan Kankowski, Bulls loose forward Hilton Lobberts and Free State prop Wian du Preez.
The newly-crowned world champions face Wales in Cardiff on November 24 before meeting the Barbarians at Twickenham on December 1.
The two matches are the swansong for coach Jake White, who will leave the post when his contract expires at the end of the year.







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