Williams said Wednesday doctors intend to run tests on his foot on Monday, when the protective boot he's been wearing for the past two weeks will be removed. Williams added he'll also attempt to run on the foot to see if it's feeling better.
He's not revealed the nature of the injury, only to say it's bothered him since training camp.
"I'm hopeful. I feel a little bit better but I won't know until I try to do some things on it," Williams said.
Coach Chan Gailey said it was premature to gauge when Williams might play, and didn't rule out the possibility of the player's season being over.
"I don't have any idea when or if he might get back," Gailey said. "I don't know. I hope so."
For Williams, what might hurt worse is not being able to enjoy being part of the Bills surprising start.
"It's fun to win, but it's not a lot of fun to watch," he said. "I am happy. I hope we kill them on Sunday. I hope I can come back to play. But it won't feel the same unless I can go out and help."
Copyright 2011 by The Associated Press