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Argentina have handed call-ups to two uncapped players ahead of their Rugby Championship opener against South Africa on August 20.
Head coach Daniel Hourcade has brought in prop Felipe Arregui and back-row forward Marcos Kremer for the clash with the Springboks in Nelspruit.
The young duo were included in the Pumas' 26-man squad on Wednesday ahead of the flight to Johannesburg to begin their preparations.
Agustin Creevy will lead the Pumas but there is no place for Matias Moroni - who is currently at Rio 2016 for the Olympic sevens competition - or the injured Jeronimo de la Fuente.
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Their absence leaves Juan Martin Hernandez and Matias Orlando as the only centres in Hourcade's squad, while Brumbies scrum-half Tomas Cubelli is the only non-Argentinian based player selected.
Argentina squad in full:
Forwards: Agustin Creevy (captain), Nahuel Tetaz Chaparro, Felipe Arregui, Julian Montoya, Lucas Noguera Paz, Ramiro Herrera, Enrique Pieretto, Matias Alemanno, Guido Petti, Tomas Lavanini, Marcos Kremer, Pablo Matera, Javier Ortega Desio, Juan Manuel Leguizamon, Facundo Isa
Backs: Tomas Cubelli, Martin Landajo, Nicolas Sanchez, Santiago Gonzalez Iglesias, Juan Martin Hernandez, Matias Orlando, Manuel Montero, Ramiro Moyano, Santiago Cordero, Lucas Gonzalez Amorosino, Joaquin Tuculet