Lions President Rod Wood said they have invited Johnson to training camp, but it appears he has not accepted the offer. At least, not yet.
"I did invite him out to training camp. We'll see if he does that," Wood said. "Hopefully he shows up. He's a great player, we want to have him kind of in the tent, not outside the tent. And hopefully that's the way it ends up."
"I was stuck in my contract with Detroit, and they told me, they would not release my contract, so I would have to come back to them. I didn’t see the chance for them to win a Super Bowl at the time, and for the work I was putting in, it wasn’t worth my time to keep on beating my head against the wall … and not going anywhere," he said to Italian media.
This wasn't the first time Johnson admitted his dismay for the Lions after his retirement.