Silenzi's prolific scoring garnered the attention of "Scudetto" and Coppa Italia winners S.S.C. Napoli, which was looking to strengthen its attacking options in a team which already featured Diego Maradona. He was ultimately acquired for 6 billion lira, and 1990–91 started brightly with the capture of the Supercoppa Italiana – a 5–1 thrashing of Juventus FC, with him contributing with two of the five goals. However, the rest of that season proved unlucky for the player, who only managed two Serie A goals (Maradona only netted six, all on penalties); the team finished eighth but went on to rank fourth the following year, mainly thanks to the firepower of Careca and Gianfranco Zola who had taken over for the banned Maradona – he only scored four times from 20 appearances.