Warning: Story contains coarse language
Burfict was banned for a helmet-to-helmet hit on Indianapolis Colts tight end Jack Doyle in Week 4, the latest in a long line of illegal plays by the then-Oakland Raiders linebacker.
The former Cincinnati Bengals standout is set to become an unrestricted free agent and is "serious" about changing his playing style in order to make a comeback, according to his agent, Peter Schaffer.
Burfict blasted Roger Goodell in November in his first public comments about his ban, calling the commissioner "a total b----" for his handling of the veteran's suspension meeting.
The 29-year-old's 12-game ban constituted the longest punishment for an on-field act in NFL history.