The 1998-99 campaign delivered a near-historic double for Lazio as the Biancocelesti mounted a furious Scudetto challenge, finishing a narrow 2nd in Serie A, just one point behind the champions. This triumph was dramatically secured by winning the final-ever UEFA Cup Winners' Cup and the Supercoppa Italiana. Leading the charge was the sensational strike partnership of Christian Vieri and Marcelo Salas, whose 15 league goals were vital in a campaign defined by a late-season title heartbreak that laid the foundation for the club's eventual league triumph the following year.. The 1999-00 campaign delivered an historic domestic double for Lazio, as the Biancocelesti dramatically clinched the Serie A title on the final day. Leading the charge was the clinical Marcelo Salas, whose 11 goals proved decisive in a campaign built on relentless ambition and a famous cup run that saw them edge out Inter Milan for the Coppa Italia. It was a golden year that marked the club's rise to the summit of Italian football and remains a defining chapter in their legendary history.