Mezue ahịrịokwu na-esonụ: Tyrell bụ onye nke ise nke Prince George Cougars na Western Hockey League (WHL) Bantam Draft na 2004. Ọ pụtara n'otu egwuregwu n'oge ahụ tupu ọ guzobe onwe ya dịka onye na-ahụkarị na Cougars na 2005/06. O nyere goolu iri atọ n'afọ nke abụọ ya, ma họpụta ya n'agba nke abụọ n'asọmpi
2007 NHL Entry Draft site na Tampa Bay Lightning. Na mgbakwunye, o mere egwuregwu mba ụwa mbụ ya maka ndị otu egwuregwu Canada na 2007 Super Series, na-eburu otu ihe mgbaru ọsọ na egwuregwu asatọ, mana o nweghị ike ịme ndị otu maka 2008 World Junior Ice Hockey Championships.