 Nyora kupfuurira kweiyi ndima - Bertini akawana 25 caps yeItaly national team pakati pa1966 na1972. Akarasikirwa ne22-murume Italy squad ye1966 FIFA World Cup, kunyange zvazvo akanga achiri kuendeswa kuEngland nemutungamiri Edmondo Fabbri, pamwe chete naLuigi Riva, seimwe nzvimbo yekuchengetedza kuitira kuti awane ruzivo nenyika. Bertini akatamba mu1970 FIFA World Cup, apo aipfeka nhamba 10 hembe, sezvo Italy akakwanisa wechipiri-nzvimbo kumugumo. Mumutambo wokupedzisira, akacherechedza Pelé mukufamba kwake kwakadzika kunze kwenzvimbo iyi, kunyangwe Brazil yakazopedzisira yakunda Italy 41. 