He grew up in the youth team of Ponziana and in 1955 was signed by Torino and inserted in their youth system, where he stayed for three years. In 1957 he was auditioned by the national team manager Giuseppe Galluzzi in view of an international youth tournament On 11 August 1958 Ferrini was loaned to Varese in Serie C. In his only season with the biancorossi, he contributed 10 goals to the salvation of the team played mainly as a starter. Returning from loan, he contended his starting spot with Italo Mazzero in the midfield as the team were preparing to play in the Serie B. On 20 September 1959 he made his debut with Torino away to Sambenedettese and the following week scored his first goal at home against Cagliari. He finished the season with 38 appearances and three goals, achieving direct promotion to Serie A and becoming fundamental to the club for his pace and determination. The following season he was confirmed as a key player for Torino by the manager Benjamín Santos, and debuted in Serie A on 25 September 1960 in a loss to Sampdoria. Along with Remo Lancioni, he made the most appearances during the season, finishing 12th in the league. He spent 16 seasons with Torino, becoming the club's most capped player in the top flight, with 39 goals scored in 405 appearances; in total, he made 566 appearances and scored 56 goals between the league, Coppa Italia and European competition. He won two Coppa Italia trophies, held in 1967–68 and 1970–71. The last match he played was away against Napoli on 22 June 1975, the last group match of the Coppa Italia in 1974–75.
International career
He was summoned by the national team manager Gipo Viani to represent the Azzurri, who finished in fourth place at the Olympic tournament held in Rome in 1960, playing three times. Also in 1960, he was called up to the Nazionale di Lega della Serie A under-23 against the homologous team of the English League, which he entered in the 30th minute, replacing Giacomo Bulgarelli. He was first called up to the Italian national team on 13 May 1962 against Belgium, on the eve of the FIFA World Cup in Chile. During the competition he is remembered as one of his team's protagonists, along with Mario David, against the hosts Chile, a match later colloquially known as the Battle of Santiago. After seven minutes he was sent off by the English referee Ken Aston for a violent foul against the Chilean Honorino Landa. Ferrini refused to leave the ground, however, and continued to play until the police intervened to remove him from the field. Italy lost the match 2–0 and were eliminated in the first round of the tournament. Unlike many Italian players from that World Cup, he returned to play for the national team and his last game was the first of the final two games of the 1968 UEFA European Football Championship against Yugoslavia, played on 8 June 1968. He played a total of seven matches with the Azzurri.
Style of play
A hard-working, aggressive, and energetic wide midfielder of quantity, Ferrini was known for his stamina and his hard challenges, as well as his dedication, consistency, and leadership, despite his lack of notable technical ability. A tenacious, influential, and versatile team player, he was capable of playing in several midfield positions, and could also be deployed as a defensive midfielder, or as an offensivecentral midfielder. Despite his powerful, combative, and at times excessive style of play, he was also known for being a fair and correct player.
Death
A few months after his retirement, while he served as assistant coach of Luigi Radice in the season in which Torino returned to win the Serie A title, he suffered two aneurysms. Despite two surgical operations, he died on 8 November 1976 at the age of 37 years. He is buried in the small cemetery hill of Pino Torinese, near Superga, where the Grande Torino side perished in the Superga air disaster.
