Sunderland are sending Djibril Cisse back to parent club Olympique Marseille.
The 27-year-old Frenchman spent the season on loan at the Stadium of Light from Marseille, and the Black Cats negotiated the terms of a prospective transfer then.
However, chairman Niall Quinn today revealed that they would not be taking up that option.
He told the club's official website: "We wish Djibril well and thank him for his contribution to the club this season."