Leijer, who has appeared 176 times for the Victory, admitted it was a tough decision to leave the Victory after being an establishment player in their first season in 2005 before heading to England to try his luck with Fulham and Norwich City prior to his Melbourne return in 2009.
"The decision to move to China to play football was one made with a heavy heart knowing that I'd be leaving a club that has provided me with the greatest moments of my career," Leijer said from China.
"Melbourne Victory has been like a family to me and the success shared with team mates, and members and fans will remain with me forever.
"Leaving a group of great mates has been very difficult and I wish Kevin and all the boys at the club the every success this season and beyond and I will be following their progress very closely.
"I was offered a new challenge in China, and after much deliberation decided this was a new experience and a fantastic opportunity for my family."
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