Felipe Contepomi is moved to inside centre for the Wales game

Agust�n Pichot captains the side with Federico Todeschini at fly-half and Felipe Contepomi playing inside centre.

The Pumas beat Wales twice in Argentina last year, though Wales have the better record, winning six of 10 encounters.

"Wales are as tough as an opponent as the ones we'll face in the World Cup, said coach Marcelo Loffreda.

He added: "Saturday's opposition are a team who lost their last game and will look to clinch a victory on Saturday.

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"I don't know if their style is the same as France or Ireland, but they play a very important tournament every year, the Six Nations, so they will be a difficult team to beat."

The Pumas are not strangers to winning in Cardiff - they beat Wales in 2001.

Argentina team to face Wales at the Millennium Stadium on 18 August, 1430 BST:

Argentina: Serra; Borges, Gait�n, F Contepomi, Corleto; Todeschini, Pichot (capt); Roncero, Ledesma, Scelzo, IF Lobbe, Albacete, Leguizam�n, JF Lobbe, Longo.
Replacements: Basualdo, Bonorino, Alvarez, Durand, Vergallo, M Contepomi, Agulla.