Tokyo - Namibia coach Phil Davies has made sweeping changes to his team for the Pool B match against South Africa at City of Toyota Stadium on Saturday.
Kick-off is at 11:45 SA time.
There are 10 changes to the starting line-up which lost 47-22 to Italy last Sunday.
Only captain Tjiuee Uanivi, Cliven Loubser, JC Greyling, Chad Plato and Johan Tromp return.
Peter John Walters - who became the first player since 2011 to make his Test debut for Namibia in a World Cup match when he came off the bench against Italy - will start at inside centre and Eugene Jantjies will extend the Welwitschias' all-time appearances record to 68.
AJ de Klerk is in the starting XV of a World Cup match for the first time. He has previously featured in three, all off the bench.
15 Johan Tromp, 14 Chad Plato, 13 JC Greyling, 12 Peter John Walters, 11 Lesley Klim, 10 Cliven Loubser, 9 Eugene Jantjies, 8 Adriaan Booysen, 7 Muharua Katjijeko, 6 Thomasau Forbes, 5 Tjiuee Uanivi (captain), 4 Johan Retief, 3 AJ de Klerk, 2 Louis van der Westhuizen, 1 Desiderius Sethie
Substitutes: 16 Obert Nortje, 17 Andre Rademeyer, 18 Johannes Coetzee, 19 Prince Gaoseb, 20 Janco Venter, 21 Wian Conradie, 22 Helarius Axasman Kisting, 23 Johan Deysel
15 Warrick Gelant, 14 Sbu Nkosi, 13 Lukhanyo Am, 12 Frans Steyn, 11 Makazole Mapimpi, 10 Elton Jantjies, 9 Herschel Jantjies, 8 Schalk Brits (captain), 7 Kwagga Smith, 6 Francois Louw, 5 Lood de Jager, 4 RG Snyman, 3 Vincent Koch, 2 Bongi Mbonambi, 1 Tendai Mtawarira
Substitutes: 16 Steven Kitshoff, 17 Thomas du Toit, 18 Eben Etzebeth, 19 Siya Kolisi, 20 Franco Mostert, 21 Cobus Reinach, 22 Damian de Allende, 23 Cheslin Kolbe