Marx and Goosen make Bok cut
The squad has been named only for the opening two matches of the 2016 Rugby Championship against Argentina.
Also recalled are Teboho Mohoje, Vincent Koch, Juan de Jongh, Francois Hougaard and Bryan Habana.
Overall, seven changes have been made to the squad that did duty against Ireland in the June Test series.
Injured players not considered for selection are Frans Malherbe, Coenie Oosthuizen, Jan Serfontein, Pat Lambie, Handré Pollard, Cobus Reinach and Siya Kolisi.
The Springbok squad will assemble in stages from Sunday, August 7, in Johannesburg.
The nine Lions players who featured in the Super Rugby Final earlier on Saturday will join on Wednesday – with the six overseas-based players and two Olympians due to join next Sunday, August 14.
The remaining squad members assemble on Sunday for a week's preparations before the full squad of 31 players move camp to Nelspruit (August 14) to continue their preparations for the first Test against Argentina, on August 20 in the Mbombela Stadium.
Coetzee was excited to start preparations for the Rugby Championship and to work with the new players in the 31-man Bok squad.
"I'm excited to get Malcolm Marx involved with the Boks on the back of a very strong Super Rugby season," said Coetzee.
"It's also great to welcome back Oupa [Mohoje] and Vincent Koch to the Boks – both of them have worked incredibly hard and played very well recently.
"Johan Goosen has been in outstanding form for his club in France and gives us a number of options in the backline with his versatility, while Francois Hougaard, Juan de Jongh and Bryan Habana were previously not available because of Springbok Sevens commitments.
"We are fortunate to welcome back an experienced player such as Bryan [Habana], who will be able to provide great guidance to our young backs, while Juan [de Jongh] and Francois [Hougaard] also bring vast experience with them."
The Bok coach explained the decision not to select the experienced wing JP Pietersen and fullback Willie le Roux.
"JP and I recently held discussions and I have decided to give him a much-needed break because he has played a lot of rugby the past three years.
"Although he has joined English club Leicester, he will still be available for the Springboks.
"The same applies to Willie, who has just signed with Wasps.
"The other players who were part of the squad in June but have missed out on selection will continue to be part of the process going forward.
"We have to build depth because this is a long haul and a tough competition, and they are not out of our plans.
"It is important that a player such as Scarra [Siyabonga] Ntubeni, for example, gets playing time in the Currie Cup with his provincial team.
"Losing Pat [Lambie] and Frans [Malherbe] to injury is a huge blow as both of them are part of our leadership group.
"However, Oupa [Mohoje] also brings leadership to the squad having captained the SA A side earlier year against the England Saxons and also leading the Cheetahs towards the end of their Super Rugby campaign," added Coetzee.
"We will use our experience and lessons learnt from the Ireland series as the stepping stone for the Rugby Championship and keep on growing our depth in our squad and improve on our overall game."
The selection of prop Trevor Nyakane is subject to medical clearance.
Meanwhile, Coetzee has decided that Chean Roux will take charge of the Bok defensive coaching duties.
Roux, who previously assisted the Boks as part of the Mobi-Unit on refereeing and technical aspects, fills the vacancy left by Jacques Nienaber – who recently left the Mobi-Unit and SA Rugby to take up a post at Irish club Munster.
South African squad: Ruan Combrinck, Damian de Allende, Lodewyk de Jager, Juan de Jongh, Francois de Klerk, Pieter-Steph du Toit, Eben Etzebeth, Johan Goosen, Bryan Habana, Francois Hougaard, Elton Jantjies, Steven Kitshoff, Vincent Koch, Jaco Kriel, Jesse Kriel, Francois Louw, Lionel Mapoe, Malcolm Marx, Bongi Mbonambi, Teboho Mohoje, Franco Mostert, Tendai Mtawarira, Lwazi Mvovo, Sikhumbuzo Notshe, *Trevor Nyakane, Rudy Paige, Julian Redelinghuys, Morné Steyn, Adriaan Strauss (captain), Duane Vermeulen, Warren Whiteley.
*Subject to medical clearance
Your #Springboks squad for @CastleLagerSA Rugby Championship to play @AllBlacks @qantaswallabies @unionargentina pic.twitter.com/GOnQzTgUKZ
— South African Rugby (@Springboks) August 6, 2016
