NEW YORK (Reuters) - Defensive tackle and restricted free agent Tony Brown has agreed a multi-year contract extension with the Tennessee Titans, the NFL team said on Thursday.

Although details were not disclosed by the Titans, local media estimate the deal to be worth $17 million over three years.

A mainstay in the team's defensive line, the 29-year-old Brown was signed by Tennessee as a free agent in October 2006.

He has recorded 15.5 sacks in 52 career starts and ranks seventh among NFL defensive tackles over the last two years with nine sacks.

(Writing by Mark Lamport-Stokes in Los Angeles, editing by Tony Jimenez. To query or comment on this story email sportsfeedback@thomsonreuters.com)