Brazilian President Luiz Inacio Lula da Silva, the ruling Workers' Party candidate (left), and Senator Flavio Bolsonaro, the Liberal Party candidate (right), attend campaign rallies in Sao Paulo and Rio de Janeiro, respectively, on Saturday, ahead of Sunday's presidential runoff.

Brazilian President Luiz Inacio Lula da Silva, the ruling Workers' Party candidate (left), and Senator Flavio Bolsonaro, the Liberal Party candidate (right), attend campaign rallies in Sao Paulo and Rio de Janeiro, respectively, on Saturday, ahead of Sunday's presidential runoff.