REUTERS/Nacho Doce
But what about the political implications of the elections?
President Dilma Rousseff has been losing popularity as Brazil's economic growth has slowed and concerns about higher inflation and lower employment have been stoked.
While Rousseff is still favorite to win the election, support has fallen to 34% from 37% the previous month, according to a poll cited by Reuters. So many are wondering what a Brazilian win or loss at the World Cup could mean for the incumbent.
Alejandro Arreaza of Barclays writes that the longer Brazil stays in the tournament, the better it is for Rousseff. "If Brazil wins the tournament, this should help lift sentiment temporarily," he writes. "But the challenge for re-election is increasing, especially as the economy is slowing more than expected and the popular demand for change in policymaking is rising."
In a paper for Proceedings of the National Academy of Sciences (PNAS) Andrew J. Healy, Neil Malhotra and Cecilia Hyunjung Mo found "clear evidence that the success or failure of the local team before the Election Day significantly influences electoral prospects for the incumbent party," writes Guilherme Loureiro at UBS.
A victory 10 days before an election gives the incumbent government an additional 1-2 percentage point of extra votes in presidential elections. That figure is larger for teams with a stronger fan base. But the paper also found that in instances when games took place more than 14 days before the elections they had no significant impact on the election results. (Remember, Brazil's general elections are slated to take place in October).
While this study was focused on the United States, Loureiro writes that "provides good evidence about the mechanisms of underlying voters' assessments of a candidate's performance."
In trying to see how this would impact Brazil, he looks how far Brazil got in the last five World Cups and the changes in the government's approval rating. His results basically imply that "the World Cup should have no direct impact on the election."
Both Loureiro and Arreaza, however, think we should watch for a possible spike in street protests during the World Cup.
"Street protests are once again building momentum and could get worse, especially if Brazil is eliminated early in the competition," writes Arreaza.
A recent poll from the CNT/MDS showed that nearly 76% of voters rejected the World Cup investment, and if the event ends up being a failure, "it could eventually trigger a return of street protests, as happened in mid-2013," writes Loureiro.
"Although we believe there is less room for deterioration in the government's popularity now than a year ago (as Dilma's approval rating now is supported by a harder core of PT voters), if the World Cup proves to be a sporting failure for Brazil, it would have the potential to tarnish the government's image and work as a catalyst for the revival of social protests."
So perhaps we should be watching, not for a Brazilian World Cup victory or loss, but whether the World Cup ends up being a sporting failure or success. And maybe, even in a football crazy nation like Brazil, some in the opposition might secretly be hoping for the World Cup to be a failure.