Kammala jumla mai zuwa: Duk da kasancewa a matsayin 10th, 13th- da 18th-mafi kyawun hangen nesa na gaba ɗaya ta ƙungiyoyin NHL da yawa, a ƙarshe an zaɓi Kapanen 22nd gaba ɗaya ta Pittsburgh Penguins, shekara ta biyu a jere Pittsburgh ta zaɓi Finn a zagaye na farko na NHL Entry Draft, bayan Olli Määttä a
A shekara ta 2012. Jim Rutherford, babban manajan Penguins a lokacin, shi ma ya rubuta mahaifin Kasperi lokacin da yake babban manajan Hartford Whalers a 1995. A ranar 11 ga Yuli, 2014, Kapanen ya sanya hannu kan kwangilar shekaru uku tare da Penguins.