Ange Postecoglou confirms that Leigh Griffiths will not play for Celtic again as he thanks the striker for leaving his mark on the club.
As exclusively revealed by Record Sport , the Parkhead club have activated an option to release the controversial Scotland international.
Griffiths had been on loan at Dundee, who will keep him at Dens Park until the end of the month as they weigh up their next move.
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