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.