 After two seasons with Udinese from 1991 to 1993, he announced his retirement from playing football.After his retirement, Mandorlini became coach of Serie D side Manzanese in 1993, but did not manage to save them from relegation.He then was in office at Ravenna as assistant manager until 1998, when he became head coach of Serie C2 team U.S. Triestina Calcio.