Peru will win the Copa America for just the third time in their history if they beat Brazil on Sunday, with Paolo Guerrero likely to be key.
Two first-half goals and a late third from Paolo Guerrero guided Peru past Chile in the Copa America semi-finals.
Brazil have been booed during their first two Copa America matches and boss Tite is expected to freshen up his attack to face Peru.
Paolo Guerrero cancelled out Marcelo Martins' 28th-minute penalty before teeing up Jefferson Farfan as Peru overcame Bolivia.
Mile Jedinak asked FIFA to allow Paolo Guerrero to play at the World Cup despite failing a drug test, and the Peru star wants to thank him.
Will he stay or will he go? That is the question being asked of Peru boss Ricardo Gareca amid links with Argentina.
Peru benefited from VAR in their loss to Denmark last week but that has not changed Ricardo Gareca's stance on the technology.
Saturday's 1-0 World Cup loss to Denmark in Group C was cruel, but epitomised why Peru are universally loved on and off the pitch.
Ricardo Gareca knows Peru will have to be on their mettle to deal with Denmark star Christian Eriksen on their World Cup return.
Paolo Guerrero has been confirmed in Peru's World Cup squad, having been cleared to play thanks to the temporary lifting of a doping ban.