Kammala jumla mai zuwa: New Jersey Devils ne suka zaɓe shi a zagaye na shida a shekara ta 2005 (na 170 a duka). Bayan ganin lokaci a cikin tsarin gonar Iblis an yi ciniki a watan Satumbar 2008 daga New Jersey zuwa Phoenix Coyotes. New Jersey ta karbi Kevin Cormier a musayar Zimmerman. Ya halarci sansanin horar da Coyotes a wannan shekarar, amma bai shiga kungiyar ba kuma an sanya shi zuwa kananan kungiyoyi. A cikin ƙananan yara ya raba lokaci tsakanin ƙungiyar Phoenix ta American Hockey League (AHL) da San Antonio Rampage da ƙungiyar su ta Central Hockey League (CHL) da Arizona Sundogs. Zimmerman ya zira kwallaye 2 da maki 5 a wasanni 56 tare da kungiyoyin biyu. Ya sake shiga cikin sansanin horo na Coyotes a kakar wasa mai zuwa, amma an sake tura shi zuwa ƙananan yara. Ya buga wasanni 72 a cikin shekara don Rampage kuma ya inganta ƙididdigar maki zuwa 9 kuma ya ƙara ƙimar +13 (daga haɗin -10 a kakar da ta gabata). A ranar ƙarshe na cinikin NHL Zimmerman, tare da zagaye na shida a cikin
2010 da aka zaba, Phoenix ya yi musayar zuwa Vancouver Canucks a musayar Mathieu Schneider.