Nyorai kuenderera mberi kweiyi ndima - Wisniewski akatanga basa rake rejunior ice hockey nePlymouth Whalers yeOntario Hockey League (OHL) muna 2000. Akavandudza gore rimwe nerimwe zvikuru, uye akasarudzwa mumutambo wechishanu, wechi156, neChicago Blackhawks muna 2002
. Pakutanga kwegore ra2003-04, akatumidzwa zita rekuti kaputeni weWhalers. Gore iroro, akarova zvibodzwa 17, 11 pamutambo wesimba. Akapedza ari 24th mune zvibodzwa zvakazara aine 70 mapoinzi, wechitatu pakati pevadziviriri uye matanhatu chete mapoinzi kubva kuOHL inotungamira, yakagadzwa naKingston Frontenacs defender Bryan Rodney. Nokuda kwokuedza kwake, Wisniewski akapiwa OHL's 2004 Max Kaminsky Trophy semudziviriri akatanhamara. Akatorawo kumba OHL's mubatanidzwa wemubereki, Canadian Hockey League (CHL's), Defenseman of the Year mubayiro. Kuzivikanwa uku kwakawana Wisniewski chibvumirano neChicago, uye kusvetukira kuAmerican Hockey League (AHL) yeNorfolk Admirals, Blackhawks 'yepamusoro minor league mubatanidzwa.