After Cagliari were relegated in 1997, he transferred to S.S. Lazio, where he remained for six seasons, winning the 1999–2000 Serie A title, two Coppa Italia titles (1997–98 and 1999–2000), two Italian Supercups, the 1998–99 UEFA Cup Winners' Cup, and the 1999 UEFA Super Cup, also reaching the final of the UEFA Cup in 1998.