 Ẹ parí gbólóhùn yìí: Nígbà tí Mannini wà pẹlú Samp, ó gba ife ẹyẹ Coppa Italia mẹrin àti ife ẹyẹ : 1991 national championship, scoring a crucial goal in the latter competition on 19 May in a 30 home win against U.S. Lecce. O gba ife eye kan ninu idije keji ni 19 May ninu ayo 30 ti o gba si ile pelu U.S. Lecce. O tun farahan ni awọn ipari UEFA meji ni awọn ọdun 1990, ti o gba UEFA Cup Winners Cup lodi si R.S.C. Anderlecht ati pipadanu European Cup lodi si FC Barcelona, ere ikẹhin ti o dun ni Wembley. 