He was part of the Colts’ championship in Super Bowl XLI, where Indianapolis defeated the Chicago Bears on February 4, 2007, in Miami. Diem played in 158 career games, starting 150 of them, and recorded one fumble recovery. Since his retirement, he has become the co-owner of Modern Muscle, Inc., in Illinois. He sits on the board of directors at CloudOne, a cloud service provider. He has one child with his wife, Julie Constein, to whom he’s been married since 2003.