Graduated in journalism at Casper Líbero College, he is a special correspondent and member of the editorial council of Folha de S.Paulo. During his career, worked at the Correio da Manhã, TV Excelsior, Autoesporte magazine, O Estado de S.Paulo, Jornal do Brasil and Isto É magazine.

In the 1970s, he covered the coup d’etat in Chile and the democratic transition to democracy in Argentina, Bolivia, Chile, Paraguay, Peru, Uruguay, Guatemala, El Salvador, Nicaragua, Portugal, Spain and South Africa, as well as Brazil. Won three times the Vladimir Herzog Award: in 1980, for a series of articles on the Southern Cone; the second in 1981, for the article "Mothers of Mayo" on how the group dribble the police and protest; and in 1982 for a group of subjects.

In 2001, Rossi received the Maria Moors Cabot Prize. The following year, Rossi won the Ayrton Senna Award in the political journalism category. He was nominated in 2008 for the International Media Council, set up by the World Economic Forum to bring together a hundred journalists considered the world's most influential, global or regionally.