 KuSampdoria akaumba mubatanidzwa wekurova wakabudirira newaaitamba naye uye shamwari yehudiki Roberto Mancini, achiwana zita remadunhurirwa rekuti The Goal Twins I Gemelli del Gol, muchiItaly. NaVialli panguva yake yakanakisisa, Sampdoria yakava nenguva yakabudirira zvikuru munhau yayo. Vakakunda mukombe wavo wekutanga weSerie A mumwaka wa1990-91, umo Vialli aive mukwikwidzi wepamusoro-soro aine zvibodzwa gumi nezvipfumbamwe achipemberera zvibodzwa zvake zvakawanda nekudzokera kumashure, kusanganisira imwe kurwisa Inter imwe UEFA Cup Winners Cup 1990 kwaakarova zvibodzwa zviviri mukukunda 2-0 pamusoro peAnderlecht mumutambo wekupedzisira zvakare kupedzisa makwikwi semutambi wepamusoro-soro, uye makapu matatu eItaly muna 1985, 1988 na1989, zvakare achiisa rekodhi yezvinangwa gumi nematatu muchinyorwa chimwe chete cheCoppa Italia panguva yake yekirabhu. Vakakundawo Supercoppa Italiana, uye vakasvika kumagumo eUEFA Supercup, uye yekupedzisira yeEuropean Cupmuna 1992, akarasikirwa naJohan Cruyffs Barcelona Dream Team yeSpain 10. 