FOXBOROUGH, Mass. -- The Patriots were awarded linebacker Chris White on waivers, according to a league source.

White recently was traded from the Buffalo Bills to the Detroit Lions, who subsequently waived him as part of the team's final cut down. White has played in 22 career games in two NFL seasons, totaling 19 tackles. The addition of White gives the Patriots seven linebackers on their roster.

In addition, the team tried out free-agent center Edwin Williams, a veteran of four seasons who spent 2010-12 with the Chicago Bears. The team claimed a pair of interior linemen on waivers on Sunday, an area that may need depth as veteran Will Svitek was absent from Sunday's practice.

Finally, three players, defensive ends Jermaine Cunningham and Justin Francis, as well as offensive lineman Chris McDonald, who were waived/injured on Saturday, passed through waivers unclaimed and will revert to the Patriots' injured reserve list.