The Selecao remain unchanged from their comfortable semi-final victory over South Korea as Mano Menezes looks to deliver a first Olympic title for the South Americans
Mano Menezes names an unchanged side from the Selecao's semi-final win over South Korea, Neymar and Leandro Damiao will feature in attack hoping they can continue the South Americans' record of scoring three goals in each game at the tournament.
Brazil have been just as impressive at the back, where Thiago Silva and Juan have developed a strong understanding, the pair continue again this afternoon.
Mexico are featuring in their first Olympic final and have been forced to make one change to their side that overcame Japan 3-1 at the semi-final stage.
Tottenham winger Giovani dos Santos drops out due to an injury sustained in that match, Hector Herrera replacing him.
This could prompt a change in their formation to a 4-4-2, or Javier Aquino may move into a more advanced role from midfield.
Brazil starting XI: Gabriel; Rafael, Thiago Silva, Juan, Marcelo; Sandro, Romulo; Alex Sandro, Oscar, Neymar; Leandro Damiao
Mexico starting XI: Corona; I Jimenez, Mier, Reyes, Chavez; Enriquez, Salcido, Herrera; Fabian, Aquino, Peralta.