As a defensive midfielder, Ferrario became a starter at Juventus, winning the position from Carlo Parola.

At Juventus, he won two Serie A championships, the first in 1952 and the other in 1958 as well as one Coppa Italia before ending his career with cross-city rivals Torino at thirty-five years of age.

A notable instance with the national team at Budapest was Ferrario's confrontation with Hungary's local hero Kocsis in a 1955 game where Italy lost 2–0 that nearly started a riot between the Italians and Magyars.

He was also a member of the Italian team that took part at the 1952 Summer Olympics, however he did not participate in any matches.

[2] One of the largest players to ever have played on the Italy national team at the time, he was nicknamed 'Mobilia' for his rugby player-like physique.