The game - featuring domestic players only - will be played on Wednesday at Boca Juniors' La Bombonera stadium in Buenos Aries with Brazil holding a 2-1 lead from the first match.
The game should have been played on October 3 in Resistencia, the capital of the province of Chaco, but was postponed due to a power failure minutes before kick-off.
Guinazu, who has played for Brazilian club Internacional for several years, said: "I'm hopeful we can play a great game. I think fans will support us a lot and I hope we can give something back to them. The ones who will play will bring their life on the field."
Goalkeeper Agustin Orion, who plays for Boca Juniors, told Fox Sports Radio: "There are no friendly games against Brazil.
"I played last year's Superclasico de las Americas and it was a beautiful experience. All of us want to play Brazil. The stadium will be full of fans. We are ready, we are used to the coach's (Alejandro Sabella) idea and we feel we belong to the Argentinian shirt."
Forward Juan-Manuel Martinez, who will play in the FIFA Club World Cup with Corinthians, said: "Brazil will not play defensively despite having taken a 2-1 lead from the first leg.
"We need to win and Brazil feel comfortable by attacking and playing with the ball.
"We must win so, in order to win, we must attack them. It is up to how focused the players are. Brazil will play like they always play. Because of our history and the way we play, we don't have any other option but attack them."
Brazil keeper Jefferson, who has yet to hear if he will face Argentina, said of the prospect of playing at La Bombonera: "Everybody likes to play there. That stadium has held several Copa Libertadores finals."
Midfielder Paulinho, meanwhile, already knows what to play at La Bombonera means as he played for Corinthians in this year's Libertadores Finals win over Boca.
He told reporters in Buenos Aires: "It is not new, but we know which difficulties we'll play against. We are ready to play a great game with the Selecao."
Having scored 13 goals at Corinthians this year, Paulinho has become one of the most important attacking options for Brazil coach Mano Menezes.
Paulinho added: "I know that Argentina watch us like we watch other teams. It will not be an easy game.
"Argentina know Brazil play with midfielders who approach the goal, but I hope we can perform a good football game tomorrow night."