Kammala jumla mai zuwa: Daya daga cikin 'yan tsirarun' yan asalin Cologne da za su buga wa Kölner Haie a Deutsche Eishockey Liga, Scotty Bowman, kocin da kuma babban manajan kungiyar Buffalo Sabres, wanda ya zaɓe shi a matsayin zaɓaɓɓen 214 a cikin
Zaɓin shiga NHL na 1983. Bayan Kölner Haie ya lashe gasar zakarun Jamus a 1986, kungiyar ta saki Krupp don ba shi damar taka leda a NHL. Ya fara buga wasan NHL a kan Montreal Canadiens, amma ya shafe ƙarshen kakar wasa tare da Rochester Americans na American Hockey League, inda ya kasance memba na ƙungiyar Amurkawa waɗanda suka lashe Kofin Calder. Krupp ya zira kwallaye a lokacin karin lokaci a wasan karshe na Buffalo a kakar wasa ta 1989-90 da Pittsburgh Penguins wanda ya kawar da Penguins daga fafatawar wasan.