The Bills signed linebacker Xavius Boyd today. Boyd, 6-foot-2 and 243 pounds, replaces Darrin Kitchens on the roster.
Kitchens was released with a waived/injured designation after suffering a left-leg injury during a special-teams drill Monday.
Boyd, 23 and a native of St. Petersburg, Fla., previously was an undrafted free agent signing of the Baltimore Ravens out of Western Kentucky. He led the Hilltoppers with 103 tackles, including 15.5 for loss, and 8.5 sacks during the 2013 season.