Was just playing around on the 'Net and came across this post from a couple of days ago on the St. Pete Times' Tampa Bay Bucs beat blog. It concerns where things stand with Carnell Williams' recovery from the serious knee injury he suffered last September.

Looks like he'll start training camp on the physically unable to perform list and may even remain there when the season starts, in which case he'd have to spend at least the first six weeks of the season on PUP. I'm sure they're not going to rush things with him. Being back close to 100 percent a year after the injury might be a bit of a long shot.

Link

Here's the most relevant portion:
"Williams' continued recovery will be one of the stories we'll be watching intently during training camp. If he truly is as close to resuming his career as he has indicated, the Bucs will perhaps have to make some tough decisions about their stable of running backs, one that already includes Warrick Dunn, Michael Bennett and Earnest Graham.

If Williams -- who suffered a torn patellar tendon last September -- remains on the PUP list once the regular season begins, additional restrictions take effect. He must remain there for at least the first six weeks, after which the team would have a three-week window in which to evaluate the player in practices and decide whether to activate him."