 Nyorai kuenderera mberi kweiyi ndima - Negro akakunda Coppa Italia mumwaka wa1997-98, uye akasvikawo kumagumo eUEFA Cup gore iro naLazio, achirasikirwa neInter. Mwaka wakatevera, Lazio yakakunda Supercoppa Italiana, uye yakaiswa yechipiri muSerie A.A.C. Milan, asi akakunda 199899 UEFA Cup Winners Cup, kunyange zvazvo akanga asiri kushandiswa mukutsinhana kwechikwata 21 yeRCD Mallorca mumagumo. Kubudirira uku kwakakurumidza kuteverwa neEFAFA Super Cup muna 1999, ichikunda vakundi veEFAFA Champions League Manchester United mumutambo wekupedzisira. Mumwaka wa1999-2000, akabatsira Lazio kuhwina mukombe weSerie A, aine zvibodzwa zviviri mumitambo makumi maviri nematanhatu, achibatsirawo Lazio kutora Coppa Italia neSupercoppa Italiana pamusoro peInter, kuhwina chinyorwa chekutanga chePallone dArgento muna 2000. Mubairo uyu unopihwa mutambi anenge aratidza kuti ari munhu anokosha mumwaka wose, pamusana pezvaanenge aita uye zvaanenge aita. Lazio yakasvikawo kumaquarter fainari eUEFA Champions League mwaka iwoyo. 