Duncan, who made 73 saves in 25 appearances last term, is now contracted until May 2019.

The 24-year-old Duncan had played a largely supporting role as back up custodian to shot-stoppers at the Jets, at Perth Glory, and in the Danish Superliga with Randers.

However, the gifted glovesman demonstrated he can mix it with the A-League’s best.

“With only ten teams in the A-League it can be really difficult to break through as a goalkeeper in Australia,” Duncan said.

“I relished having the challenge of ‘BK’ (Ben Kennedy) last pre-season and then having a full season to establish myself in the team.”

“Next season will be about pushing on personally and trying to help the team win as many games as possible.”

“With Glen (Moss) coming to the club we will have another experienced goalkeeper in the goalkeeper's union alongside (coach) Jess (Vanstrattan) and myself. Us three being able to work with each other and progress and improve is something that I am really looking forward to.”