Safet Susic's men are playing in their first ever World Cup as an independent nation and kick their tournament off against the South Americans, who are one of the favourites to win it outright.
However, despite boasting players of the calibre of Lionel Messi, Angel Di Maria and Sergio Aguero, Sabella insists the Eastern Europeans cannot be underestimated in their first game.
"I do not like the word 'favourite'," Sabella told L’Equipe. "So I leave it to others."
"Today, more and more teams are at the same level in football. More and more, the word 'favourite' loses its meaning. The first match is always very difficult, you play under pressure.
"We are impatiently awaiting the first match. It’s an immense joy to be in this group."
Sabella also referenced the immense travelling Argentine support gathering in Rio de Janeiro.
"I want to send a message of thanks and of appreciation to our compatriots who have come to Brazil and we will give our maximum to achieve our aim. When one wears the Argentine shirt, there is a responsibility. One must honour the shirt."