The switch is a life-changing move for 32-year-old Vukovic and his young family, having never played in Europe despite a short ill-fated stint in Turkey with Konyaspor.

Sydney confirmed Vukovic's exit although the Sky Blues didn't identify which "top flight club" would be his new home.

It has been widely reported, Vukovic will be joining Genk, who had Socceroo Mat Ryan on loan for the second half of the 2016-17 season.

Vukovic will pursue the move once he has returned from Confederations Cup duty with the Socceroos in Russia.

“I am very fortunate to have had the best season of my career since joining Sydney FC,” Vukovic said.

“It has been an amazing 12 months for me and my family, a year I will always remember, and I would like to thank the Members and everyone at the club for an unforgettable experience.

“The support we have been given by everyone has been phenomenal and it is something that we as a family will hold dear to our hearts for the rest of our lives.

“I’m very sad to leave but to have such an unbelievable opportunity so late in my career is something that I just couldn’t turn down.

“It is something I could not have foreseen and I would like to thank Sydney FC, the board of directors and Graham Arnold for their kindness, understanding and support in allowing me to make this move.

“I am very proud at what we have achieved and with the fantastic squad Arnie has assembled, I believe the club will continue to be successful in the years ahead.”

Sydney coach Graham Arnold praised Vukovic, who holds the record for the number of A-League appearances (278), and wished him well in his future career.

“Danny was superb last season and it’s no secret how highly I regard him as a player and as a person,” Arnold said.

“No one at Sydney FC wants Danny to go and we are naturally devastated to lose him but this is a life changing opportunity for him, his wife Kristy and his beautiful son Harley.  It’s the kind of challenge faced by Australian clubs and we cannot stand in his way.

“I’m very proud of Danny and would like to thank him for his professionalism since he joined Sydney FC and for the fabulous service he gave us.

“He will always have a special place in the hearts and minds of Sydney FC Members.”

Meanwhile youngsters George Timotheou and Bai Antoniou have both left the club to pursue other football career interests.

The Sky Blues will return to training in early July, ahead of the club’s huge clash with Arsenal on Thursday 13 July.