South Africa head coach Rassie Erasmus believes that selection continuity will assist his team against Wales in Cardiff on Saturday.
Erasmus has named an unchanged team from the one that beat Scotland last weekend to face a Wales side undefeated since February.
"We have had a look at 50 players this year, and it is nice to have continuity, but it does not mean at all that these boys are the ones fixed to go to the World Cup," he said.
"Having continuity against a team that has won eight games on the trot will help a lot."
South Africa have lost four of their last five games against Wales, including a narrow reversal in Washington DC earlier this year.
But the Springboks have been in solid form on their European tour, beating France and Scotland after losing to England by a point in controversial fashion.
"It (victory on Saturday) would definitely make the tour successful, or relatively at least, because we would have liked to have won four out of four," he added.
"We know how tough it is going to be. We have not beaten them in the last three games, and they have won eight on the trot.
"Beating a team like that will give us more confidence. If we beat them on Saturday it will mean we have won five of our last seven games, and lost two by one point and two points."
South Africa team to play Wales
Forwards: 1 Steven Kitshoff, 2 Malcolm Marx, 3 Frans Malherbe, 4 RG Snyman, 5 Franco Mostert, 6 Siya Kolisi (Captain), 7 Pieter-Steph du Toit, 8 Duane Vermeulen
Backs: 9 Embrose Papier, 10 Handré Pollard, 11 Aphiwe Dyantyi, 12 Damian de Allende, 13 Jesse Kriel, 14 Sbu Nkosi, 15 Willie le Roux
Replacements: 16 Bongi Mbonambi, 17 Thomas du Toit, 18 Vincent Koch, 19 Eben Etzebeth, 20 Francois Louw, 21 Ivan van Zyl, 22 Elton Jantjies, 23 Cheslin Kolbe