Former Argentina international Santiago Phelan has been named as the new coach of the Pumas.
Phelan last played for Argentina at the 2003 World Cup
The 34-year-old, who has coached Buenos Aires giants CASI and Argentina A, takes over from Marcelo Loffreda who moved to Leicester after the World Cup.
Phelan's first matches in charge will be the two-Test series at home to Scotland, starting on 7 June.
"They are important Tests and we must approach them with the preparation they deserve," said Phelan.
Argentina are currently ranked third in the world after a superb World Cup campaign last year that saw them finish in third place.
"There are a lot of players who are near the end of their career and who surely won't play at the next World Cup," said Phelan.
"I'll talk to each of them, as they deserve, to see what they want to do. Then, I'll evaluate what's best for the team."
Phelan made 46 international appearances, finishing with his second World Cup in Australia in 2003 before retiring at 29 through injury.
Former Pumas centre Fabian Turnes will be Phelan's assistant.