"The Browns are near the end of their rope with running back Peyton Hillis and are prepared to let him walk in free agency after this season, NFL sources said.

At this point, it would take a dramatic turnaround in behavior and production for Hillis to persuade the Browns to re-sign him when he becomes a free agent in March.

"It's one thing after another, and what's been out there isn't even the half of it," one source said.

And now, Hillis is expected to miss at least a couple of more games after re-injuring his hamstring in practice Friday afternoon. Hillis had an MRI on Friday, and it showed a significant strain to his left hamstring. Hillis got hurt in the first 15 minutes of practice, which was open to the media. "