The 1-0 win over Lecce sends Inter clear at the top of the Serie A table.
Inter failed to impress the home crowd in the first half and were jeered off the San Siro at the break.
Inter: Julio Cesar; Zanetti, Cordoba, Burdisso, Chivu (Cruz 72); Vieira (Maicon 46), Cambiasso, Stankovic (Quaresma 46); Mancini, Ibrahimovic, Adriano
Lecce: Benussi; Angelo (Diamoutene 51), Stendardo, Fabiano, Esposito; Munari, Zanchetta, Ardito, Ariatti; Cacia (Caserta 74); Tiribocchi (Castillo 54)