Rallies, opinion polls and a final debate - Brazil gets ready for Sunday's knife-edge presidential election

Brazilian President Luiz Inacio Lula da Silva and right-wing senator Flavio Bolsonaro rally their supporters one last time on Saturday, converging on the beaches of Rio de Janeiro and closing a fraught election campaign one day after a combative final live television debate. In the first round of voting Bolsonaro won 47% over Lula's 45%. But in the intervening 3 weeks of intense and acrimonious campaigning the left-wing incumbent seems to have made up some ground.