Ronaldo, bermain untuk kedua kalinya musim ini setelah menderita cedera, membawa Milan terlebih dulu unggul pada menit ke-15 melalui tendangan yang melambung di atas kiper Napoli Gennaro Iezzo.
Ronaldo, playing in only his second match this season after injury problems, gave Milan a 15th-minute lead when his shot ballooned off Napoli keeper Gennaro Iezzo and just crossed line before Andrea Cupi hooked clear.