The Chargers placed linebacker Antwan Applewhite on "Reserve-Injured" Tuesday and signed former Colts cornerback Dante Hughes to take his place on the active roster.

Applewhite, a second-year pro and former San Diego State Aztec, suffered a hamstring injury in the Chargers' season opener at Oakland and hasn't played since.  He returned to practice last week and re-aggravated the injury.  He is expected to undergo surgery.

Hughes (5-10, 190) joined the Colts as a third-round draft pick in 2007 (95th overall) and spent two seasons in Indianapolis.  He appeared in 24 games as a reserve defensive back and special teams player.  Hughes was released at the conclusion of training camp this season. 

Prior to his time with the Colts, Hughes was an All-America performer at the University of California where he recorded 15 interceptions in four seasons with the Bears.  A Los Angeles native, Hughes prepped at Crenshaw High School.