1 , ▁ 2 0 1 6 , ▁against ▁the ▁Ro chester ▁Americans ▁and ▁his ▁first ▁professional ▁goal ▁in ▁a ▁ 3 - 1 ▁win ▁over ▁the ▁Le high ▁Valley ▁Ph ant oms . ▁He ▁received ▁a ▁call - up ▁by ▁the ▁Toronto ▁Map le ▁Le af s ▁on ▁March ▁ 1 9 , ▁ 2 0 1 6 , ▁and ▁made ▁his ▁N HL ▁debut ▁on ▁March ▁ 1 9 , ▁ 2 0 1 6 , ▁in ▁a ▁game ▁against ▁the ▁Buff alo ▁Sab res . ▁He ▁played ▁seven ▁games ▁with ▁the ▁Map le ▁Le af s ▁before ▁being ▁sent ▁back ▁to ▁the ▁A HL . ▁During ▁those ▁seven ▁games , ▁G auth ier ▁recorded ▁his ▁first ▁career ▁N HL ▁point ▁on ▁April ▁ 6 , ▁ 2 0 1 6 , ▁with ▁an ▁assist ▁on ▁Morgan ▁R iel ly ' s ▁second ▁period ▁goal . ▁▁ ▁After ▁att ending ▁the ▁Map le ▁Le af s ▁training ▁camp , ▁G auth ier ▁was ▁assigned ▁to ▁the ▁Toronto ▁Mar lies ▁for ▁the ▁ 2 0 1 6 – 1 7 ▁season . ▁However , ▁after ▁playing ▁ 1 6 ▁games ▁with ▁the ▁Mar lies , ▁G auth ier ▁was ▁re called ▁to ▁the ▁N HL ▁on ▁December ▁ 1 6 , ▁to ▁replace ▁an ▁injured ▁Martin ▁Mar inc in . ▁G auth ier ▁would ▁eventually ▁record ▁his ▁first ▁career ▁N HL ▁goal ▁on ▁December ▁ 2 2 , ▁ 2 0 1 6 , ▁against ▁the ▁Colorado ▁A val anche . ▁G