He played for Argentina 21 times between 1927 and 1935.
He made 1 appearance in the 1927 South American Championships, 5 appearances at the 1928 Olympic games , 3 appearances in the 1929 South American Championships and 3 at the 1930 World Cup.
Bossio was unexpectedly replaced for the semi final (by Juan Bottaso).
Bossio was known as La maravilla elástica (the elastic marvel) due to his agility.
