Bears could have told you stay away from Martellus Bennett. I believe his final year with the Bears they questioned him sit out games - he missed 5 his final year. That's why they did not bring him back. He is a wacko. Not a good player to have if you have a losing team.
Apparently he has had a lingering injury he did not disclose on signing a contract. Packers may be owed all $8 million they have paid him. You don't lie when signing a contract.