The striker has never recaptured the form he had at Bolton where he earned a solitary England cap, and he is now likely to leave if he can find a suitable club.
The 26-year-old was informed in May that he was not part of Kevin Blackwell's plans and spent a spell on loan with Stoke City.
Leeds are now keen to offload him and are reported to have let him know that he is free to depart as they look to cut the wage bill.
Ricketts failed to find the net on 21 occasions for Leeds last season and is now expected to move on.