South Africa are bidding to reach their second World Cup final, but Argentina are also unbeaten, having topped a qualifying pool that featured France and Ireland.

South Africa coach Jake White has recalled prop CJ van der Linde for Sunday's clash in Paris.

The Free State prop missed the Springboks' 37-20 quarter-final victory over Fiji last weekend due to a knee injury.

With fellow prop BJ Botha already ruled out of the tournament because of knee trouble, it meant White flying in Jannie du Plessis as front-row cover.

He started against Fiji, but now reverts to the bench alongside his brother Bismarck du Plessis, with Van der Linde packing down alongside Os du Randt and skipper John Smit.

The return of Van der Linde is White's solitary change, despite South Africa producing an unconvincing display in toppling a Fiji side that fought back to 20-20 midway through the second-half.

John Smit will lead the Springboks for the 47th time in Test matches while Percy Montgomery is set to extend his lead in the scoring charts for this tournament - he is currently the top point scorer in RWC 2007 with 76 points.

Bryan Habana, with six tournament tries, needs two tries to equal the RWC Tournament record set in 1999 by Jonah Lomu of New Zealand.

The only player that scored more than six tries at this tournament is Australia's Drew Mitchell whose side crashe dout last weekend.

With the return of Van der Linde South Africa will once again field the most experienced Springbok side ever with a collective caps tally of 653 for the starting 15.

Argentina's star fly-half Juan Martin Hernandez has shaken off injury concerns to be named in an unchanged Pumas side for the match at the Stade de France.

Hernandez sat out contact training on Thursday with a leg injury, along with captain Agustin Pichot (back) and inside centre Felipe Contepomi (flu), but the key trio have been named in the Pumas team.

Argentina will tackle the Springboks with the same starting XV that earned victories over Ireland and then Scotland in last weekend's quarter-final.

The only change coach Marcelo Loffreda has made to the squad is on the bench, where London Irish centre Gonzalo Tiesi replaces Hernan Senillosa.

The Pumas are in their first ever World Cup semi-final and have never before beaten South Africa but are determined to create their own slice of history this week.

Centre Manuel Contepomi said this week: "There's always a first time for all things.

"This is a semi-final, a new game, we trust in our weapons and that we can play a great match.''

South Africa: P Montgomery; JP Pietersen, J Fourie, F Steyn, B Habana; B James, F du Preez; O du Randt, J Smit (capt), CJ van der Linde, B Botha, V Matfield, S Burger, J Smith, D Rossouw.

Replacements: B du Plessis, J du Plessis, J Muller, B Skinstad, R Pienaar, A Pretorius, W Olivier.

Argentina: I Corleto; L Borges, M Contepomi, F Contepomi, H Agulla; JM Hernandez, A Pichot (capt); R Roncero, M Ledesma, M Scelzo, I Fernandez Lobbe, P Albacete, L Ostiglia, JM Fernandez Lobbe, G Longo Elia.

Replacements: A Vernet Basualdo, O Hasan, R Alvarez Kairelis, JM Leguizamon, N Fernandez Miranda, F Todeschini, G Tiesi.

Referee: Steve Walsh (New Zealand)