Following his achievements with the national side, and due to his performances during his time with Napoli, Zoff was signed by Juventus in 1972, at the age of 30, where he resumed his success. In eleven years with Juventus, Zoff won the Serie A championship six times, the Coppa Italia twice and the UEFA Cup once, also reaching two European Cup finals, another semi-final in 1978 (during which Zoff played a decisive role in the club's shoot-out victory over Ajax in the quarter-finals by saving two penalties), and the semi-finals of the European Cup Winners' Cup during the 1979–80 season. In 1973, he placed second in the Ballon d'Or, following his Serie A title victory, also narrowly missing out on an historical treble with Juventus, after reaching both the European Cup and the Coppa Italia finals that season, in which his club were defeated, however; Juventus also finished as runners-up in the 1973 Intercontinental Cup that year. In winning the 1977 UEFA Cup Final against Athletic Bilbao, Zoff came out on top against his 'twin', the Basque goalkeeper José Ángel Iribar.