Bell has forfeited $853,000 each week he hasn't reported to the Steelers. If he reports next week and signs his franchise tender, he will be owed $11.9 million.
This news of the Steelers listening to trade offers is just the latest in the controversy surrounding the team.
James Conner has started at running back over the first two weeks.
The Steelers play the Tampa Bay Buccaneers on Monday night.