Burfict was placed on the non-football injury list to open training camp because he was dealing with a hamstring issue.
The 27-year-old Burfict will have a little more than one month to prepare for the regular season before serving a four-game suspension for violating the NFL's performance-enhancing substance policy. He was also suspended to begin the 2016 and 2017 campaigns for violations of the league's player safety rules.
Burfict ended his 2017 season early after entering concussion protocol. He began the 2015 season on the PUP list after recovering from microfracture surgery on his knee the previous year.
The 6-foot-1, 255-pound Burfict recorded 69 tackles and 1.5 sacks last season.