The 24-year-old Socceroos winger spent part of his youth career at German giants Shalke 04 before moving to the Eredivisie, where he's played his entire professional career.

Hrustic has been at current club, FC Groningen, since 2016 accumulating 70 Eredivisie appearances and garnering strong reviews, becoming one of the league's most fouled players last season.

PLUS...

30% wage cut or leave for free: A-League exodus waiting on PFA negotiations

A-League clubs and the PFA are stuck in negotiations over how to drastically reduce club's wage bills following the COVID pandemic.

PLUS...

Popovic on Euro move: 'I know what I'm going into'

Tony Popovic has spoken about his move to Greek second division club Xanthi FC, saying it'll be hard but he understands the challenge ahead.

He was recently joined at the Dutch club by former Bayern Munich legend Arjen Robben, which began rumours that there may be overseas interest in the Socceroo.

The three cap Australian international is now rumoured for a German return, with Bild reporting that Frankfurt boss Adi Hütter has been impressed by Hrustic's form on the right-side of Groningen's midfield.

Another Bundesliga club, FC Koln, has also reportedly shown interest in Hrustic.

Bild are reporting that contact has already been made and Hrustic is close to sealing terms with the club, which would see him join fellow Socceroos wingers Brandon Borrello and Matthew Leckie in Germany.

Frankfurt finished ninth in last season's Bundesliga campaign and played Europa League.

PLUS...

Five players leave Brisbane after 'difficult season'

Brisbane Roar have announced three new departures alongside Daniel Bowles' loss and Danny Kim's return to the Queensland NPL.

PLUS...

City snapping up Victory, Sydney, Brisbane young guns

Melbourne City have launched a recruitment spree aimed at some of the best young talent from the A-League's biggest clubs.