San Diego, CA -- (Sports Network) - The San Diego Chargers signed backup quarterback Billy Volek to a three-year contract Friday.

Volek became an unrestricted free agent late Thursday evening but spurned several suitors to remain the backup to Philip Rivers.

In eight NFL seasons, Volek has played in 30 games, starting 10. Since joining the Chargers via trade in October of 2006, Volek has appeared in six games.

His most significant action as a Charger came in Januarys Divisional Playoff win at Indianapolis after Rivers was sidelined with a knee injury. Volek came off the bench and led the Chargers on an eight-play, 78-yard touchdown drive that proved to be a game-winner.