you are missing to of the most importants stadiums in Brazil: Mineirao e Independencia.

Mineirao:
official name: Estadio Governador Magalhaes Pinto
founded in 1965
initial capacity: 120000
capacity after reformation: 60000

mostly used by Atletico Mineiro e Cruzeiro.

Independencia:
official name: Estadio Raimundo Sampaio
founded in 1950 for the world cup in Brazil this year.
capacity: 15000

mostly used by America FC but also by Atletico Mineiro