, ▁in ▁his ▁second ▁Under ▁ 2 0 ▁World ▁Championship ▁campaign . ▁New ▁Zealand ▁won ▁their ▁sixth ▁title ▁after ▁defe ating ▁England ▁ 6 4 – 1 7 ▁in ▁a ▁record ▁score ▁in ▁a ▁final , ▁scoring ▁ten ▁tries ▁to ▁three . ▁A um ua ▁scored ▁a ▁hat - tr ick , ▁including ▁one ▁solo ▁try ▁in ▁which ▁he ▁beat ▁no ▁less ▁than ▁six ▁def enders . ▁He ▁became ▁only ▁the ▁second ▁player ▁to ▁score ▁a ▁hat - tr ick ▁in ▁a ▁final . ▁ ▁Professional ▁career ▁▁ 2 0 1 6 – 1 8 ▁ ▁During ▁the ▁ 2 0 1 6 ▁season , ▁at ▁ 1 9 ▁years ▁old , ▁he ▁made ▁his ▁first ▁professional ▁team ▁debut ▁when ▁he ▁came ▁on ▁as ▁a ▁reserve ▁forward ▁during ▁the ▁opening ▁match ▁against ▁Haw ke ' s ▁Bay ▁at ▁Mc Le an ▁Park . ▁Represent ing ▁the ▁Well ington ▁under - 1 9 ▁team ▁in ▁T au po , ▁A um ua ▁was ▁ordered ▁back ▁after ▁L eni ▁A pis ai ▁failed ▁conc uss ion ▁protocol s ▁in ▁prepar ation ▁against ▁North land . ▁He ▁scored ▁three ▁tries ▁in ▁the ▁fi xture , ▁making ▁him ▁just ▁the ▁fourth ▁hook er ▁to ▁register ▁a ▁hat - tr ick ▁in ▁the ▁competition ' s ▁history . ▁A um ua ▁was ▁the ▁side ' s ▁leading ▁try - sc orer ▁with ▁six ▁in ▁ 1 0 ▁games . ▁ ▁His ▁performance ▁at ▁national ▁age ▁grade ▁level ▁in ▁ 2 0 1 7 ▁im pressed ▁Well ington ▁head