The San Diego Chargers announced Wednesday they have re-signed running back Curtis Brinkley and added linebacker Gary Guyton to the active roster. Brinkley had been with the Chargers for the first 11 weeks of the season before he was released Nov. 29. He played in seven games with one start. He has rushed 29 times for 60 yards and caught nine passes this season. Guyton is a fifth-year player who spent the first four years of his NFL career with the New England Patriots. To make room for the two players on the roster, the team placed defensive end Vaughn Martin (groin) and safety and special teams player Darrell Stuckey (hamstring) on the Reserve-Injured list.