 Vialli akatanga basa rake rekirabhu kuCremonese muna 1980 kumusha kwake kuItari kwaakaita 105 makwikwi ekurova zvibodzwa makumi maviri nematatu. Kuita kwake kwakafadza Sampdoria uyo akamusaina muna 1984, panguva iyo yaakarova zvibodzwa makumi masere neshanu, akahwina makapu matatu eItaly, Serie A neEuropean Cup Winners Cup. Vialli akaendeswa kuJuventus nokuda kwenyaya yenyika ye 12.5 mamiriyoni muna 1992. Munguva iyi akakunda Italian Cup, Serie A, Italian Supercup, UEFA Champions League uye UEFA Cup. Muna 1996 Vialli akabatana neChelsea uye akazova mutambi weChelsea maneja mwaka unotevera. MuEngland akakunda FA Cup, League Cup, UEFA Cup Winners Cup uye UEFA Super Cup. Ndiye mumwe wevatambi venhabvu vapfumbamwe vakahwina makwikwi matatu makuru eEuropean makirabhu, uye iye chete kumberi kuti azviite; ndiye zvakare mutambi chete munhoroondo yenhabvu yeEuropean kuve nemenduru dzekukunda uye dzevamiriri mumakwikwi matatu makuru eEuropean makirabhu, kusanganisira menduru mbiri dzevakundi veEFAFA Cup Winners Cup. 