Mezue ahịrịokwu na-esonụ: Morrisonn malitere ọrụ hockey ya na Vancouver Thunderbird Minor Hockey Association (VTMHA). Mgbe o gosipụtara onwe ya na ọkwa obodo, ndị Kamloops Blazers nke WHL wepụtara ya ma mechaa wepụta ya na 1st round, 19th n'ozuzu site na Boston Bruins na
2001 NHL Entry Draft. E mechara nye ya ndị isi obodo na Machị 3, 2004 na azụmaahịa nke zigara Sergei Gonchar na Bruins.