Caretaker coach Lionel Scaloni was impressed by Argentina's performance against Brazil, despite slipping to a last-gasp 1-0 defeat.
Miranda, who was denied an earlier by Nicolas Otamendi's block, settled a low-key Superclasico de las Americas clash in the 93rd minute – the first time Argentina, who were without Lionel Messi for Tuesday's clash in Saudi Arabia, have conceded under Scaloni.
Giovani Lo Celso and Paulo Dybala came close to scoring for Argentina but Scaloni, who picked a young, relatively inexperienced side at international level, insisted the all-round performance of the team bodes well for the future.