With the likes of the Juventus youngster, Kranevitter and Funes Mori ruled out, the two Colchonero youngsters will be key to the Albiceleste's campaign in Brazil.
Atletico Madrid duo Luciano Vietto and Angel Correa will lead Argentina's Olympic charge in the absence of Paulo Dybala in Rio de Janeiro.
After bitter wrangling over the squad selection and the resignation of Gerardo Martino marred preparations, the Argentine FA finally released the list of 18 players that will go to Brazil.
As expected, Dybala, who had been included by Martino in his preliminary squad, misses out after being denied permission by Juventus.