During a highly successful domestic and European stint with Juventus, Morini won five Serie A titles, a Coppa Italia during the 1978–79 season, and an UEFA Cup during the 1976–77 season, also reaching the European Cup final during the 1972–73 season, and the semi-final of the European Cup Winners' Cup during the 1979–80 season, his final season at the club. Throughout his professional footballing career as a defender, Morini never scored a goal; although he once appeared to score one during a friendly tournament, it was disallowed. Morini ended his career in Canada with the Toronto Blizzard.