Jurrell Casey has signed a multi-year contract extension with the Tennessee Titans that keeps him under contract through 2018.

"We are excited to come to an agreement on an extension with Jurrell," general manager Ruston Webster said in a statement. "This is something Jurrell has earned not only with his play on the field but his work ethic as well. We appreciate Jurrell's professionalism through this process and look forward to many good years to come."

Casey's agent Drew Rosenhaus told NFL Media Insider Ian Rapoport that it's a four-year deal worth $36 million with $20.5 million guaranteed.

The defensive tackle was a Pro Bowl-snub last season after a 10.5-sack year with 55 tackles. As an under-the-radar beast, Casey epitomized an underrated Titans defensive unit in 2013.