Oxborrow joins the Roar after departing Perth at the end of last season, having made over 25 appearances for the club across two seasons. 

The 22-year-old first made his A-League debut with Newcastle Jets before moving to Western Australia in 2015. 

He becomes Brisbane coach John Aloisi's fourth signing of the off-season, joining Fahid Ben Khalfallah, Massimo Maccarone and Corey Gameiro. 

“Brisbane is a great club with brilliant fans, and I’m extremely grateful to be given this opportunity,” Oxborrow said in a Roar statement. 

“My new teammates have made me feel welcome and my focus now is doing my part for the team over the coming months.

“I’m stoked to be here and looking forward to the challenge of helping the club be successful this season.” 

Aloisi added: “It is great that a talented young footballer with Hyundai A-League experience like Mitch has joined our club.

“We believe he will be a valuable addition to our squad for the upcoming FFA Cup & A-League campaigns.

“Our squad has a good balance of youth and experience with healthy competition for places.”