Mezue ahịrịokwu na-esonụ: N'ịga n'ọkwa U20, Reinhart nwetara ebe na ndị otu egwuregwu mba nke ndị na-eto eto maka
2014 World Junior Championships. Nwanne ya nwoke Griffin mekwara ndị otu ahụ, ha wee bụrụ di na nwunye nke atọ nke ụmụnne nwoke na-egwu maka Canada na World Junior Championships. Reinhart na Aaron Ekblad bụ naanị ndị egwuregwu abụọ na ndị Canada na-eru eru maka NHL Entry Draft 2014. Reinhart dere goolu abụọ na enyemaka atọ n'egwuregwu atọ mbụ nke asọmpi ahụ, mana ejidere ya maka ihe fọdụrụ na asọmpi ahụ. Canada tụfuru egwuregwu ọla nchara megide Russia 2<unk>1 wee kwụsị nke anọ. Sam Reinhart nọchitekwara anya Team Canada na 2015 World Junior Ice Hockey Championship. Ndị otu ahụ meriri ọla edo dịka Sam jere ozi dịka otu n'ime ndị isi abụọ na-anọchite anya ndị otu ahụ, nke ọzọ bụ Connor McDavid. Reinhart gbara goolu meriri egwuregwu megide ndị otu Russia na egwuregwu Gold Medal, nke bụ nke ise ya na asọmpi ahụ. Reinhart ji ngụkọta nke ihe mgbaru ọsọ 5 na isi ihe 11 na-eduga ndị egwuregwu niile na ihe mgbaru ọsọ na isi ihe.