Williams, 25, went undrafted out of Mississippi State in 2020. He spent the majority of the past two years on the Kansas City Chiefs’ practice squad and reached a futures contract in February.
Pro Football Focus charted Williams for allowing one penalty and one quarterback hit through 79 offensive snaps last preseason. The 6-foot-3, 310-pound blocker cleared waivers amid Kansas City’s mandatory minicamp on Wednesday.
At Mississippi State, Williams appeared in 45 career games and made 38 starts between left guard and center. He served as a Bulldogs team captain as a redshirt senior on the way to the East-West Shrine Bowl and NFL Scouting Combine.
Williams’ agency, Elite Loyalty Sports, confirmed his agreement with New England.
The Patriots head toward training camp with an interior depth chart that also includes David Andrews, Mike Onwenu, James Ferentz, Yasir Durant, William Sherman, Drew Desjarlais, Arlington Hambright and rookies Cole Strange, Chasen Hines, Andrew Stueber and Cody Russey.
Veterans report back to Gillette Stadium on July 26.