Malatrasi played for 12 seasons (247 games, 3 goals) in the
Serie A for Italian clubs
SPAL 1907,
Fiorentina,
Roma,
Inter Milan,
Lecco and
AC Milan, winning at least one trophy for four of these teams (except for SPAL and Lecco). He played for both rival clubs of Milan – Inter Milan and AC Milan – and was part of their
European Cup victories in
1964–65 and
1968–69 respectively, thus becoming the first player to participate in the European Cup campaigns of two different winning teams, and the only with two teams of the same city. Malatrasi played in the
1969 final, but not in the
1965 final. Malatrasi is the only player that have won three
Intercontinental Cup in his career. ==International career==