Thornton will be eligible to return to the Lions’ roster on Monday, Oct. 16 following the team’s game against the Saints.
Thornton, 27, is a former third-round pick of the Packers back in 2014. However, despite his draft status, Thornton lasted just a little over a year in Green Bay before he was waived at the start of the 2015 season.
After a brief stint with the Patriots, the Lions later claimed him off of waivers during the 2015 season and he finished out the year in Detroit before returning on a two-year, $3.3 million contract this past March.
In 2016, Thornton appeared in 13 games for the Lions and recorded 18 tackles and a sack.