Having had a breakthrough season, the young goalkeeper has decided to stay at the club that gave him his first professional opportunity
Goalkeeper Jack Duncan has signed a one-year extension to his Newcastle Jets contract, which will keep him at the club until the end of the 2018-19 A-League season.
Duncan played 25 of Newcastle's 27 matches in his maiden campaign with the Jets, with the 24-year-old keeping two cleansheets and conceding 43 goals in his first season as a number one goalkeeper.
His previous best campaign in terms of league appearances was in 2013-14 when he played six A-League games for Perth Glory.