The result, secured thanks to Pumas tries by Felipe Contepomi and Omar Hasan in the first half and Federico Martin Aramburu, Ignacio Corleto and Contepomi in the second, brought back memories of the shock 17-12 win over France on the tournament’s opening night.
Contepomi added three conversions and a penalty while Les Bleus could only manage a try from Clement Poitrenaud — converted by Lionel Beauxis — and a Jean-Baptiste Elissalde penalty.
All France had to show from a dominant opening 20 minutes was an Elissalde penalty, for Patricio Albacete’s hands in the ruck.
Their lack of cutting edge was ruthlessly punished by Argentina, who scored two tries in four minutes around the half hour mark. Contepomi, who had levelled matters with a 22nd-minute penalty, ran onto a delayed Agustin Pichot pass in the left corner to score.
Then prop Hasan was at the bottom of a pile of bodies to ground after Juan Martin Hernandez had crashed a drop goal against the post. Contepomi added the extras.
France needed to score first in the second half but were shocked by Aramburu’s try on 53 minutes finishing a fine move by jinking inside Dominici to ground. Contepomi missed the conversion.
Juan Manuel Leguizamon was yellow carded for a late hit on sub Sebastien Chebal but Argentina made light of their deficit by running in a sensational fourth try.
Horacio Agulla went clear down the left and his pass was taken by Corleto who scorched past the cover to dive over in the corner.
The try France probably deserved came in the 69th minute, Poitrenaud easing over in the left corner after a Harinordoquy break. But the night belonged to the Pumas and Contepomi rounded things off with his second try of the night with three minutes left.