Per Ricky Henne of the Chargers' official website, Clemens' deal is for one year. Michael Gehlken of the San Diego Union-Tribune reported the one-year contract is worth $1.065 million and includes an $80,000 roster bonus.
Clemens has spent the last two seasons in San Diego, appearing in four games and throwing just nine passes.
Even though Clemens likely won't see much in-game action, barring something bad happening to Philip Rivers, ESPN's Eric Williams did note how his work behind the scenes is vital for the Chargers:
Eric Williams @eric_d_williams
Chargers re-sign Kellen Clemens. He has good comfort level with Rivers, gives defense a good look on game weeks. https://t.co/M5RpY1oduE2016-3-10 01:09:47
Being a backup quarterback often gets categorized as a cushy gig, but Williams' note does prove how important the position is to making an offense run. Execution from the starter is always going to triumph over everything else, but the defense has to practice against someone during the week.
Clemens is not without game experience. He started nine games for the Rams in 2013, throwing for 1,673 yards and eight touchdowns.
Henne noted the Chargers have been on a spending spree early in free agency. In addition to re-signing Clemens, his report mentioned the team also nabbed wide receiver Travis Benjamin, nose tackle Brandon Mebane and safety Dwight Lowery.
The Chargers will rise or fall in 2016 based on how well Rivers performs, but having a stable presence behind him who can help read opposing defenses and step up in a pinch is an essential asset for NFL teams.
Clemens brings plenty to the table in San Diego. He's committed to helping the team win, regardless of how it will happen.