When his suspension was announced on Nov. 15, Jeffery issued a statement saying he took a "recommended supplement" to battle inflammation, and it contained an ingredient on the league's banned-substance list.
He didn't want to rehash the incident Wednesday.
"I'm not going to talk about what happened or who recommended it," he said. "I'm going to own up to it, and I accept the punishment. I learned from it. You've got to know what you put in your body."
After failing to agree with Jeffery last season on a multiyear contract, the Bears used the franchise tag to keep him for one year at a guaranteed $14.599 million. They could tag him again this off-season, but that would cost the team $16.519 million.
Jeffery's preference is a long-term deal, and with so many other needs to fill the Bears might prefer that as well.
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