Hearts are looking to do a deal for Central Coast Mariners defender Kye Rowles, according to reports.
Robbie Neilson has made it clear he wants to add to his squad depth this summer as the Jambos juggle domestic and European group stage football.
The capital club already have two Australians on the books in Cammy Devlin and Nathaniel Atkinson.
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And now Edinburgh Evening News reports that a third could join in the shape of Rowles.
The centre-back, who can also operate at full-back, is considered as one of the league's most promising players.
He is under contract until 2023 and is on international duty with the Australia national team - but is said to be keen on a move to Europe.
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John Souttar leaves Hearts after penning a pre-contract deal with Rangers while loanees Alex Cochrane and Taylor Moore return to their parent clubs.
Joe Wright has an open invitation to join Hearts for pre-season to prove his fitness.
The club are believed to have a list of defensive targets with Rowles featuring prominently.