Dunga says Brazil's renaissance under his leadership has been sparked by the players' burning desire to make amends for their country's World Cup humiliation.

Dunga's side secured its eighth straight win since last year's World Cup as Roberto Firmino came off the bench to seal a 1-0 victory over South American rival Chile in a feisty friendly at Arsenal's Emirates Stadium on Sunday.

It was far from the most fluent performance of Dunga's second spell in charge of the Selecao.