Griffiths left Australia on Tuesday bound for China and if he passes the club medical and agrees personal terms, he will join the CSL newcomers for two seasons.

Central Coast Mariners Chairman Peter Turnbull said the transfer was a unique and lucrative opportunity for Griffiths and the club in a deal tipped to be worth around $1m.

“This is a great opportunity for Rostyn - a young player who has blossomed under Graham Arnold - to set himself up for life,” Turnbull said.

“It also represented an opportunity for us as a football club to secure a very substantial transfer fee that may not be repeated.

“Rostyn had previously advised us that he never intended to play for any other A-League club, but he was determined to pursue his career overseas.

"In union with him, we are pleased that we could arrive at an arrangement that benefits both Rostyn and the Central Coast Mariners.”

Mariners coach Graham Arnold said it was disappointing to lose Griffiths, but added that the opportunity for player and club was significant.

He added: “It’s fantastic for the player, it’s fantastic for the club but I am disappointed to lose a player of Rostyn’s quality at this time of the season.”