The Titans bolstered their running back depth on Wednesday signing former Chargers tailback Jackie Battle.

Battle (6-2 240) will compete for a depth chart spot behind Chris Johnson and Shonn Greene. Veterans Jalen Parmele and Darius Reynaud are the Titans’ other backs.

The 29-year-old Battle rushed for 311 yards and three TDs on 72 carries for San Diego in 2012. He also caught a career-best 15 passes for 108 yards and a score. Before joining the Chargers a season ago Battle spent five seasons with Kansas City.

The Titans also announced the singing of tight end DeMarco Cosby who was on the Chiefs’ practice squad for a portion of last season. His addition gives the Titans seven tight ends on the roster.