The striker is now out of contract and able to sign for any other club but is clearly hoping that there is another deal waiting for him at Celtic.
Postecoglou is reported to be already looking at the squad and recruitment with the forward line an area clearly in need of reinforcements.
Should Leigh Griffiths get another 12 month Celtic contract?
Yes, he is a guarantee of goals
No, time up, too many chances
Training resumes at Lennoxtown a week today, whether Griffiths is involved remains to be seen.
After failing to play a full 90 minutes last season and missing out on a place in the Scotland squad the 30-year-old doesn’t have a great hand for negotiating but with options and time limited for Postecoglou there could be another twist to Griffiths’ Celtic career.