Williams announced the news on his Twitter account earlier in the day.
Wedemboys for a couple more yrs tho…loyalty is everything
— Tuxedo Mask (@lilsweetness34) January 13, 2015
Williams, 24, 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, 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.
He hasn’t appeared in a game since the 2012 season and has been limited to playing just 142 snaps since entering the NFL.