NFL linebacker who won four Super Bowl Championships in his career, playing for the San Francisco 49ers, Philadelphia Eagles, Denver Broncos and Oakland Raiders.
He graduated from Boston College with honors.
After retiring from the NFL, he went into acting, appearing in films such as The Longest Yard and The Benchwarmers.
He fathered two children with his wife, Julie.
He had a small role in the 2008 comedy Get Smart, starring Steve Carell.