 Complete the following phrase:  Following Lazios and AC Milans relegation to Serie B due to their involvement in the 1980 match-fixing scandal, he was called upon by the Milanese squad and transferred to the side, becoming a first-team member alongside captain and defender Franco Baresi, as well as Filippo Galli, during a dark period in Milans footballing history, under manager Nils Liedholm. He made his Milan debut on 24 August 1980, in Serie B, in a 10 home win over Catania. Milan won the Serie B title that season to return to Serie A, with Tassotti emerging as one of the clubs best performers.ref name198081: il Milan in Serie Bref Despite winning the Mitropa Cup the following season, Milan were unable to remain in Serie A, finishing third last, and were relegated once again to Serie B. Milan were able to win Serie B again the following season to return to 