The Lions signed veteran safety Chris Hope Monday, adding a little more depth to a position that struggled with injuries throughout the 2012 season. During his 11-year career, Hope has started 113 games. He played his first four seasons with the Steelers before going to the Titans, where his time overlapped with Lions coach Jim Schwartz. Hope, 32, spent last year playing for the Falcons. With Louis Delmas still rehabbing his knee, Lions safety Don Carey has been practicing with the first-team defense this offseason. Amari Spievey and Ricardo Silva also have starting experience, but Hope will help add a veteran presence in the secondary. To make room for Hope, the Lions released wide receiver Brian Robiskie.