Dimitri Petratos will make a shock defection from the Brisbane Roar to A-League rivals Newcastle Jets in the offseason, citing family reasons.
The 24-year-old has agreed to a three-year deal to join Mark Jones' side, with his 18-year-brother Kosta also joining the club from Perth Glory.
The elder Petratos won the championship with the Roar in 2014, and was likely to notch his 100th game before heading south.
He let club officials know of his desire to return to NSW months ago, and had only praise for the Roar, according to a club statement.
"I have loved every minute of my time at the Roar," he said.
"With my future sorted, the focus is now to contribute on the field and help Brisbane be successful this season."
Roar boss John Aloisi said he would have no issues picking the forward despite his looming switch.
"It is clear that he remains committed to Brisbane," he said.
"I am sure he will continue to perform at a high standard and be an important player for our team in the coming months."
Kosta Petratos, 18, is yet to establish himself as an A-League force and has been given a one-year deal in the Hunter.
Jones said the signings boded well for the Jets' future.
"Dimitri will be a great asset," he said.
"It is good that some of the best players in the country want to come and play for the Jets."
Dimitri Petratos has two goals this campaign from 12 appearances.
His most recent effort -- a howitzer free kick two weeks ago against Melbourne Victory -- is a strong contender for goal of the season.