Tulis a continuation for this paragraph - Dina tanggal 21 Désémber 2014, Gauthier dipilih pikeun bersaing pikeun Tim Kanada salila 2015 Ice Hockey Championship Junior Dunya
. tapi Anjeunna maén dina garis sareng Lawson Crouse sareng Nick Ritchie nalika turnamén, nalika Tim Kanada meunang medali emas.