- The Cowboys also waived OT Darrion Weems.
Williams, 25, was taken in the second-round of the 2011 NFL draft. He suffered a serious knee injury during his first season in the league and hasn’t been able play a meaningful role since then.
The Cowboys signed him to a contract back in May of last year, but he was unable to make the final 53-man roster coming out of the preseason. Dallas later added him to their practice squad after he cleared waivers.
Williams wound up being placed on season-ending injured reserve with a knee injury back in July.
He hasn’t appeared in a game since the 2012 season and has been limited to playing just 142 snaps since entering the NFL.