NASHVILLE, Tenn. (AP) — Safety Michael Griffin has been on the Tennessee defense longer than anyone else, and the Titans made sure Tuesday he will stick around as they rebuild the unit with his leadership.The Titans announced the five-year extension Tuesday shortly after the end of their first session of a three-day minicamp, a deal eased in part by the man quietly taking part in the offseason program despite being tagged as the team's franchise player back in March."He is a big part of what we're trying to do moving forward," general manager Ruston Webster said."We really want to keep a core of our players together. I think that's important in building a team, and Michael has the talent and the character we look for in our players. He's handled himself like a true pro through this whole franchise tag thing, and I couldn't be happier to sign him to a new deal and have him be a Titan for a long time."A two-time Pro Bowl safety, Griffin did not balk at being tagged, with $6.2 million in guaranteed money if he played the season under that contract.