Sharks centre Adrian Jacobs has been drafted into the South Africa squad as precautionary cover for Jean de Villiers and Juan de Jongh.
Both were injured during Saturday's Currie Cup final in Durban and will be assessed further on Sunday before a final call is made by Peter de Villiers. Jacobs, who has 30 caps for the Springboks, was in the preliminary 39-man squad named two weeks ago, but failed to make the final list that was named last night.
"We will monitor Juan and Jean's progress in the next couple of days," said coach Peter de Villiers of the players who have respective ankle and groin problems.
"We have had a number of injuries among our senior centres so we decided it was essential to have some experienced cover on hand and in the group just in case."
The world champions have already suffered one injury withdrawal since the 30-man squad was announced after scrum-half Ricky Januarie pulled out.
The Western Province number nine was examined by national team doctor Craig Roberts following the final when a knee injury was deemed too serious for him to travel. No replacement has yet been named.