Lock Eben Etzebeth is set to become the most capped South African international of all time in the Rugby Championship decider against Argentina in Nelspruit on Saturday as the Springboks also offer a rare start to flyhalf Manie Libbok.

Argentina beat the world champions South Africa 29-28 in an incredible test match at the Estadio Único Madre de Ciudades on Saturday evening.

South Africa can clinch the Rugby Championship with a game to spare this weekend. The world champion Springboks face Argentina in Santiago del Estero on Saturday.

Lock Eben Etzebeth is set to become the most capped South African international of all time in the Rugby Championship decider against Argentina in Nelspruit on Saturday as the Springboks also offer a rare start to flyhalf Manie Libbok.

There are some interesting deciding factors if the Springboks and Argentina finish level on log points in the Rugby Championship standings.

South Africa coach Rassie Erasmus refused to blame Manie Libbok for the surprise 29-28 Rugby Championship defeat in Argentina on Saturday after the flyhalf missed a kick from virtually in front of the posts to win the game.

With one round to go in the Rugby Championship, we run through the permutations of the final weekend with the Springboks and Argentina still in the running for the title. After defeating Australia and New Zealand twice in the opening four rounds of the tournament,

Springbok coach Rassie Erasmus said they were hurting after their nail-biting defeat against Argentina in the penultimate round of the Rugby Championship in Santigo del Estero on Saturday night.

A late penalty could have won them the game, but South Africa can still win the title if they get one point from the return match next week.

Rassie Erasmus will make changes to his matchday 23 as the Springboks look to clinch the Rugby Championship title.