Uncapped utility back Canan Moodie has been called up to the South Africa squad for the first time for the tour of Australia.
Moodie was included in a 34-man squad on Monday for two Rugby Championship encounters with the Wallabies.
The 19-year-old gets the nod in the absence of suspended wing Kurt-Lee Arendse and fellow flyer Cheslin Kolbe, who is recovering from a broken jaw.
Deon Fourie has also been selected, with hooker Bongi Mbonambi facing four weeks on the sidelines due to a knee injury sustained in training last week.
The world champions are smarting from a 35-23 defeat to New Zealand at Ellis Park on Saturday and will get an opportunity to respond at Adelaide Oval on August 27, with Australia also licking their wounds following a 48-17 drubbing at the hands of Argentina.
Springboks head coach Jacques Nienaber said: "Bongi has been ruled out for four weeks, but Deon, who is an experienced hooker and flank, has been practising his lineout throws with us, so we are confident that he will be able to fill that void for us in these matches.
"We are also excited to see how Canan slots in during the next few weeks and to see how he adapts to our structures and systems, and we believe he has the skills to slot in for Kurt-Lee and Cheslin.
"This is a settled group of players and includes a wide spread of experience and young players who have made their presence felt, and we believe that they have what it takes to guide us back on track in the Rugby Championship in the matches against Australia."
South Africa squad to tour Australia:
Forwards: Steven Kitshoff, Vincent Koch, Frans Malherbe, Ox Nche, Trevor Nyakane, Joseph Dweba, Malcolm Marx, Eben Etzebeth, Lood de Jager, Salmaan Moerat, Pieter-Steph du Toit, Siya Kolisi (captain), Elrigh Louw, Kwagga Smith, Jasper Wiese, Duane Vermeulen, Deon Fourie, Franco Mostert.
Backs: Faf de Klerk, Jaden Hendrikse, Herschel Jantjies, Cobus Reinach, Elton Jantjies, Handre Pollard, Lukhanyo Am, Damian de Allende, Andre Esterhuizen, Makazole Mapimpi, Willie le Roux, Canan Moodie, Warrick Gelant, Damian Willemse, Jesse Kriel, Frans Steyn.