The Brisbane-born 20-year-old managed three Premier League appearances for the Clarets in the 2016-2017 season prior to a short spell with Oldham Athletic.

He joined Fleetwood Town on loan last term and appeared 21 times in League One.

O'Neill, who has represented Australia at Under-23 level, could yet become a team-mate of Usain Bolt.

The Jamaican sprinter is set to undergo an indefinite trial with the A-League side in an attempt to win a playing contract.