He is widely regarded as one of the greatest Italian football players of all time, and as one of the best players of his generation, due to his speed, work-rate, creativity, technical skills and eye for goal; he placed second in the 1971 Ballon d'Or. Having spent his entire 17 season career with Inter, he holds the honour of being a one-club man. With the club, he won four Serie A titles (1963, 1965, 1966 and 1971), two European Cups (1964 and 1965) and two Intercontinental Cups (1964 and 1965), also winning the Serie A top scorer award during the 1964–65 season, in which he also reached the Coppa Italia final, narrowly missing out on a treble with the club. With the Italian national side, Mazzola won the UEFA European Championship in 1968, being named to the Team of the Tournament, and reached the final of the 1970 FIFA World Cup; he also took part in the 1966 and 1974 FIFA World Cups with Italy.