Easley, who was projected to be the Patriots' top interior sub rusher in 2016, was waived by the team in April. That had been his primary role in his first two seasons, both of which concluded with him on season-ending injured reserve.
Easley, 24, had entered the NFL with health questions, as he tore both ACLs in college at Florida.
He played 24.6 percent of the defensive snaps as a rookie and 25.1 percent in 2015. He totaled 25 tackles and three sacks in those two seasons. He was a first-round draft selection by the Patriots in 2014.
ESPN Patriots reporter Mike Reiss contributed to this report.