 Complete the following phrase:  Born in Pontremoli, at club youth level, Albertosi represented the Spezia youth academy for a season, before making his debut in Serie A at the age of 18 for Fiorentina on 18 January 1959, playing in a goalless draw with A.S. Roma. Despite heavy competition from Giuliano Sarti during his first five seasons at the Tuscan club, where he initially mainly served as a back-up, Albertosi represented Fiorentina until 1968, winning a Mitropa Cup in 1966, a European Cup Winners Cup in 1961 the first ever edition of the competition, and 2 Coppa Italia trophies in 1961 and 1966. He later transferred to Luigi Rivas side, Cagliari Calcio, where he helped to win Cagliaris legendary first and only Scudetto during the 196970 season, his second season with the Sardinian club, recording what was at the time the lowest number of goals conceded in a 16-team Serie A campaign. He later transferred to A.C. Milan in 1974, where he remained for six years, and he won yet another Serie A championship medal with the club during the 