sentences:  Milan had to wait until 1978–79 to win their tenth "Scudetto", primarily being led by Gianni Rivera, who retired from football after this final triumph.However, the worst was yet to come for the "Rossoneri"—after the 1979–80 season, Milan was relegated to Serie B by the Italian Football Federation (FIGC), together with Lazio, due to a betting scandal.In 1980–81, Milan handily won the Serie B championship, ensuring a swift return to Serie A, where it would suffer its worst season ever, in 1981–82, being relegated once again.