Brazilians will vote on Sunday in a tight presidential race between President Lula and Senator Flávio Bolsonaro.

Brazilians will vote in a general election on Sunday with two familiar political camps once again dominating the presidential race.

Brazil's financial markets were poised for a rally on Monday after right-wing Senator Flavio Bolsonaro took the lead in the first round of the country’s presidential election on Sunday against incumbent Luiz Inacio Lula da Silva.

Brazil blocked online sports betting and casino platforms, shutting down websites and apps known locally as "bets" and banning their advertising.

Brazil is heading for another Lula-Bolsonaro showdown. But this time it is Jair Bolsonaro’s eldest son Flávio who stands between leftist President Luiz Inácio Lula da Silva and another term in power.

A wave of right-wing election victories in recent years, including in Colombia, Chile and Argentina, has swept Latin America, aided by the Trump administration under a new framework of the “Donroe Doctrine”, an updated version of the 19th-century Monroe Doctrine aimed at restoring the pre-eminence of the United States in the Western Hemisphere.

Two social media influencers and a transgender woman emerged as three of the top vote-getters in Brazil's Chamber of Deputies elections.

A White House adviser said the uncharacteristic reticence was a strategic decision as Flávio Bolsonaro takes the lead heading into the next round.