Rubuta ci gaba don wannan sakin layi - A ranar 10 ga Yuni, 2008, an yi musayar Sertich daga Dallas Stars zuwa Colorado Avalanche a musayar wani zaɓi na zaɓaɓɓu a cikin 2009 NHL Entry Draft
Ka yi haƙuri. Daga baya aka sanya hannu kan kwantiragin shekaru da yawa tare da Avalanche a ranar 24 ga Yuni, 2008. An sanya Marty zuwa ƙungiyar AHL, Lake Erie Monsters, don kakar 2008-09 amma an iyakance lokacinsa zuwa wasanni 24 kawai yayin da ya sha wahala sau biyu.