The Buffalo Bills have been without starting safety Aaron Williams for nine games this season due to a neck injury. He suffered the injury in Week 2 but was able to return and play in Week 5. Williams re-injured his neck in that game against the Tennessee Titans and was later placed on short-term injured reserve.

Williams took a step towards returning on Thursday as he was spotted on the practice field for the first time since Week 5. It was somewhat of a surprise seeing as Rex Ryan gave him a 50-50 chance to play again this season.

By being back at practice, the Bills now have 21 days to determine whether they want to activate him or keep him on injured reserve for the remainder of the season. At this point, it would seem more than likely that they'd activate him, but it's not certain.

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"We like where he is at," Ryan said on Monday. "Hopefully at the end of the year we will be able to use him, and he will be able to play for us. But we are not going to put him out there until we know, and our trainers are on top of it."