 Ramba uchiverenga ndima iyi - Cowen akakokwa kumusasa wokusarudza weTeam Canada nokuda kwe2010 World Junior Championshipsrakaitirwa muRegina muna December 2009. Cowen akasarudzwa kuTeam Canada nokuda kwechiitiko chacho. Musi waZvita 19, 2010, Cowen akasarudzwa semutungamiriri we2011 weCanada junior timu yenyika kuna Ryan Ellis weWindsor Spitfires, pamwe nevamwe vake vakadzoka, Brayden Schenn weBrandon Wheat Kings naCalvin de Haan weOshawa Generals. 