Oscar Priestman arrived from Western Sydney Wanders for an undisclosed fee in August 2025. 

The midfielder penned a three-year deal.

Priestman is a product of the Sydney FC academy, where he went on to play two games for the Sydney FC first-team. Working his way to the top, Western Sydney Wanderers brought the centre-midfielder to CommBank Stadium in 2023.

His first season there was a roaring success. Playing 25 games across the season, with his standout performances earning him a spot in the Australia Under 23 squad for the first time, Priestman quickly earned a new contract at the end of his first campaign.

In his second season, he featured a further 26 times in the heart of the Western Sydney midfield. With over 50 games played in the Australian top-flight, with the 22-year-old playing alongside former Manchester United and Chelsea midfielder Juan Mata, Priestman now makes his first move outside of his country, looking to take the next step in his career.

He follows his former Western Sydney teammates Zac Sapsford and Nicolas Milanovic to Scotland, who joined Dundee United and Aberdeen respectively earlier this summer.