At twenty years of age, he had already won a league championship and had been called up to the Italy national team by Pozzo to replace Serantoni in midfield.
In 1940 he won his second title with Inter becoming the club's captain and a pillar of the team's midfield, while still maintaining his great striking ability.
After taking part in the 1950 World Cup he went to Bologna where two years later he closed a brilliant career to become a coach.
In his last two years at Inter he became the idol of a defender from Friuli, Enzo Bearzot, who later became the coach of the Italian team that won the 1982 World Cup.
A stylish player with fine ball skills, Campatelli played a few internationals for the Italy national team between 1939 and 1950 before being called up to the 1950 World Cup squad.