 In his final season with the club, he was often alternated and faced competition for a starting spot from back-up Andrea Pazzagli, whom manager Arrigo Sacchi often fielded during league games, while Galli played in European matches.In the 1990 summer, following Milan's signing of Sebastiano Rossi, 32-year-old Galli left, going on to represent S.S.C.Napoli and appearing in an average of 33 league games during his three-year spell, starting by winning the Italian Supercup, 5–1 against Juventus.