Willie le Roux will join the Springboks in Durban on Sunday.
The veteran fullback, who was not named in the 33-man squad for the Rugby Championship matches at Kings Park on Saturday and at Twickenham on 4 October, will train with the team until Wednesday.
The latest Springbok centurion will return to the Vodacom Bulls following the conclusion of the team’s main training block on Wednesday, making him available for selection for the Pretoria-based side’s opening Vodacom URC match against the Ospreys at Loftus Versfeld on Saturday.
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“Willie is a member of our wider squad, and we feel it will benefit us to have him train with us early in the week,” said Erasmus.
“We try to train the way we play, and by having him in camp it will allow us to improve the quality of our training sessions ahead of this vital match.
“Every point will count in the next two games if we want to win the competition, so it’s essential that we get the most out of our training time to be as sharp as possible when we take the field.”
Erasmus added: “I’d like to thank Johan Ackermann and the Bulls for releasing him to train with us, and we wish them and the other South African teams the best of luck for the opening round of the URC.”
The Boks assembled in Durban last week Thursday to begin their preparations for Saturday’s encounter and had training sessions on Friday and Saturday to get the wheels in motion following their return from New Zealand a week ago.
The Springboks are second on the Rugby Championship log on 10 points, the same amount as the third-placed All Blacks following their record 43-10 victory against their old foes in Wellington.
The Wallabies top the table on 11 points, with the fourth-placed Pumas on nine, meaning the title race is wide open going into the closing two rounds.
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Springbok squad:
Forwards – Pieter-Steph du Toit, Thomas du Toit, Eben Etzebeth, Vincent Koch, Siya Kolisi, Wilco Louw, Malcolm Marx, Bongi Mbonambi, Franco Mostert, Ox Nche, Ruan Nortje, Kwagga Smith, RG Snyman, Marnus van der Merwe, Marco van Staden, Boan Venter, Jan-Hendrik Wessels, Jasper Wiese.
Backs – Damian de Allende, Faf de Klerk, Andre Esterhuizen, Sacha Feinberg-Mngomezulu, Ethan Hooker, Cheslin Kolbe, Jesse Kriel, Manie Libbok, Makazole Mapimpi, Canan Moodie, Handré Pollard, Cobus Reinach, Morne van den Berg, Damian Willemse, Grant Williams.
Photo: Ashley Vlotman/Gallo Images