He displaces Martin Scelzo to the other side of the front row, and Marcos Ayerza drops to the bench. The front-row of Hasan, Sclezo and hooker Mario Ledesma is an entirely France-based one.
Sale's Ignacio Fernandez Lobbe is back in the second row in place of Esteban Lozada, the only other change to the pack.
In the backs, captain Agustin Pichot - another based in France - returns at scrum-half. Felipe Contempomi also returns at inside cente, moving his brother Manuel to outside centre and Worcester's Miguel Avramovic out of the team altogether.
Jose Maria Nunez Piossek - also based in France - displaces Horacio Agulla to the bench and Ignacio Corleto to the left wing from the right.
In all, there are are eleven of the starting XV based in France, and one from the bench: Hernan Senillosa.
Argentina: 15 Juan Martin Hernandez, 14 Jose Maria Nunez Piossek, 13 Manuel Contepomi, 12 Felipe Contepomi, 11 Ignacio Corleto, 10 Federico Todeschini, 9 Agustin Pichot (captain), 8 Gonzalo Longo, 7 Juan Fernandez Lobbe, 6 Martin Durand, 5 Patricio Albacete, 4 Ignacio Fernandez Lobbe, 3 Omar Hasan, 2 Mario Ledesma, 1 Martin Scelzo.
Replacements: 16 Alberto Vernet Basualdo, 17 Marcos Ayerza, 18 Esteban Lozada, 19 Juan Manuel Leguizamon, 20 Nicolas Fernandez Miranda, 21 Hernan Senillosa, 22 Horacio Agulla.
Nice move!