The Bengals are re-signing Wallace Gilberry, according to Adam Schefter of ESPN.com (on Twitter). Heading into today, we had Gilberry ranked as the 12th-best edge defender left in free agency. 
Gilberry joined the Lions prior to the 2016 season and was slated to be a situational pass rusher in Detroit. After four games, he was sidelined by an abdominal injury. Detroit subsequently placed him on IR before releasing him midway through the season. When he hit the open market, the Bengals brought him back to Cincinnati.
In his first Bengals stint from 2012-15, he started in 19 games for the team and recorded 16.5 sacks with Cincinnati. Last year, he appeared in five games for the Bengals and tacked on another 2.5 sacks. For his career, Gilberry has 34 sacks across nine NFL seasons.
All of the Bengals’ free agent defensive linemen from this offseason are now spoken for, in one fashion or another. Domata Peko left for the Broncos and Margus Hunt signed with the Colts, but Gilberry will stay thanks to today’s deal.