Rubuta ci gaba don wannan sakin layi - Ana ɗaukarsa a matsayin ɗaya daga cikin manyan 'yan wasan ƙwallon ƙafa na Italiya a kowane lokaci, kuma a matsayin ɗaya daga cikin mafi kyawun' yan wasan zamaninsa, saboda saurinsa, ƙimar aiki, kerawa, ƙwarewar fasaha da ido don manufa; ya zama na biyu a cikin 1971 Ballon d'Or. Bayan ya kwashe tsawon shekaru 17 yana wasa da Inter, yana da mutuncin zama dan wasa daya-kulob. Tare da kulob din, ya lashe kofin Serie A guda hudu (1963, 1965, 1966 da 1971), Kofin Turai guda biyu (1964 da 1965) da Kofin Intercontinental guda biyu (1964
da 1965), kuma ya lashe kyautar Serie A mafi kyawun kyauta a lokacin kakar 1964 <unk> 65, wanda ya kuma kai wasan karshe na Coppa Italia, ya rasa rashin nasara tare da kulob din. Tare da kungiyar Italiya, Mazzola ya lashe gasar zakarun Turai ta UEFA a shekarar 1968, wanda aka zaba a cikin Team of the Tournament, kuma ya kai wasan karshe na gasar cin kofin duniya ta 1970; ya kuma halarci gasar cin kofin duniya ta 1966 da 1974 tare da Italiya.