The Porto forward will be joined on the bench by Lucas as the South Americans name a side unchanged from the one that triumphed over South Korea in the semi-final.
Mexico's Giovani dos Santos, who has been influential throughout the tournament, will also start on the bench. The 23-year-old picked up a muscle injury earlier in the competition.
Brazil: Gabriel; Rafael, Thiago Silva, Juan, Alex Sandro; Marcelo, Romulo, Sandro, Oscar; Neymar, Damiao
Mexico: Corona; Jimenez, Mier, Chavez, Reyes; Herrera, Salcido, Enriquez, Aquino; Fabian, Peralta
The gold medal match between Brazil and Mexico kicks off at 3pm.