He returned to Milan for a second spell with the club, during which he won the 1989 European Super Cup over Barcelona under manager Arrigo Sacchi, appearing as a defender in the first leg, a 1–1 away draw. Milan also reached the 1990 European Cup Final that season, and subsequently won the competition following a 1–0 victory over Benfica, but Salvatori did not feature in the squad for the final; he made one appearance in the competition, in the first leg of the quarter-finals, against Belgian side KV Mechelen, coming on as a substitute for Angelo Colombo, and was an unused substitute in first leg of the semi-finals against Bayern Munich. He also appeared as a substitute in the second leg of the Coppa Italia Final that year, which ended in a 1–0 home defeat to Juventus, who ultimately won the tournament on aggregate.