Mario Williams participating in Bills' first practice

PITTSFORD, N.Y. -- The Buffalo Bills removed defensive end Mario Williams from the active/non-football injury list Friday.

Williams is participating in the Bills' first practice of training camp Friday morning.

Cornerback Leodis McKelvin and kicker Dan Carpenter remain on the NFI list, while cornerback Cam Thomas and tight end Chris Manhertz remain on the active/physically unable to perform list.

Defensive end B.J. Larsen is the only other player not participating in Friday's practice.