Risdon re-signed on a one-year deal in 2016 and has been at the centre of frantic contract negotiations over recent weeks.

But club CEO Peter Filopoulos today conceded efforts to get the 24-year-old's signature for another two seasons failed when Risdon informed the club of his intention to move on.

“Despite presenting a very strong offer to Josh and his management, we’ve been advised today that he won’t be renewing his contract for season 2017/18 and beyond,” Filopoulos said. 

“We understand Josh is keen to explore life outside of Western Australia, and while we respect his decision, we are extremely disappointed he won’t be wearing the purple kit after season 16/17."

Risdon said it was a difficult decision to leave the club but admitted it was time for a new challenge. 

“This has not been an easy decision," he said. "I feel the time is right for me to explore a new adventure and grow in a different environment and move out of my comfort zone in Western Australia.

“For the past seven years I have bled purple and I owe a lot to Perth Glory and my coaches. It’s here where I have been fortunate to lead the team on the park and as a result earn a berth in the Socceroos.

“I’m a WA boy through and through and hopefully I’ll be back one day to play in front of my family and friends. I’d like to thank the fans who’ve embraced me along the way and I’ll always be grateful for their support.

“In the meantime I’m looking forward to helping the team with its quest for another Hyundai A-League finals campaign and hopefully a third championship."

Risdon began his professional career with Perth Glory FC in 2010 at the young age of 18 where he has now amassed 127 matches, making him the club’s most capped player in Hyundai A-League history.