Born in
Carrara, Morini started his career with
Inter during the
1967–68 season, but never played a game for the side. He moved to
A.S. Varese 1910 the following year, spending four seasons with the club. He made his
Serie A debut against
Cagliari on 6 October 1968. After moving to
A.S. Roma in 1972, Morini made a name for himself, representing the capital side for the next four seasons. In 1976, he earned a contract with
A.C. Milan, spending another four seasons there, and winning the Scudetto in
1979. After two seasons at minor club
Pro Patria and a short spell with low-league team
FC Chiasso, Morini ended his career in 1984. == International career ==