Sproles signs 1-year tender

Chargers halfback Darren Sproles signed his one-year, $7.2813 million restricted free agent tender Friday.

Sproles was the Chargers franchise player last season but the uncapped year prevented him from being a free agent because he didn't have six years of experience. To prevent him from leaving, the Chargers designated him a restricted free agent. Any team that wanted to sign him would have had to surrender a first- and third-round pick.

Sproles has averaged 4.5 yards a carry during his career. He's also one of the top return specialists in the NFL.

John Clayton is a senior NFL writer for ESPN.com.