Also on Thursday, the club waived linebacker Nick Greisen.
Williams (6-foot-2, 246 pounds) is a first-year player who spent the end of the 2009 season on Pittsburgh’s practice squad after competing with Jacksonville in the preseason. He was originally signed by the Jaguars as a college free agent on April 26, 2009.
He was a four-year letterman at the University of Kentucky, where he played 49 career games and recorded 131 total tackles.
A second-team all-state selection as a senior at Fletcher High School in Neptune Beach, Fla., Williams was born on Feb. 20, 1986 in Jacksonville, Fla.