Etzebeth will break Matfield’s record of 127 caps for the Boks, while Libbok is backed to start after missing a crucial kick over the past weekend.
Eben Etzebeth will set the record as the most capped Springbok of all time in Mbombela on Saturday when he runs out at lock against Argentina, while Jaden Hendrikse and Manie Libbok are paired as starting halfbacks for the first time in the title-deciding match of the Rugby Championship at the Mbombela Stadium.
The three are promoted from the bench in a match-23 that shows six personnel changes from the team that went down 29-28 against the same opposition in Santiago del Estero on Saturday.
Springboks: Aphelele Fassi, Cheslin Kolbe, Jesse Kriel, Damian de Allende, Kurt-Lee Arendse; Manie Libbok, Jaden Hendrikse; Jasper Wiese, Pieter-Steph du Toit, Siya Kolisi (capt), Ruan Nortje, Eben Etzebeth, Frans Malherbe, Bongi Mbonambi, Ox Nche.
Replacements: Malcolm Marx, Vincent Koch, Gerhard Steenekamp, Elrigh Louw, Kwagga Smith, Cobus Reinach, Handre Pollard, Lukhanyo Am.