SANTA CLARA, Calif. (AP) — The San Francisco 49ers have signed free agent running back Tim Hightower.

General manager John Lynch announced the addition Saturday of another back to add depth behind Carlos Hyde.

READ MORE: Person Suspected Of Shooting At Roseville Police Officer After Attempted Traffic Stop

Hightower has experience playing for new 49ers coach Kyle Shanahan. He was in Washington in 2011 when Shanahan was offensive coordinator.

READ MORE: Big Rig Ends Up Perched Precariously On Guardrail After Crash On I-5 In Woodland

Hightower missed the next three seasons with complications from a knee injury and spent the past two years in New Orleans. He had 133 carries for 548 yards last season with four touchdowns. He added 22 catches for 200 yards and a score.

MORE NEWS: Sacramento Mother Of 4 Killed After Stopping To Help Pedestrian Who Had Also Been Hit

In six years with Arizona, Washington and New Orleans, Hightower has rushed for 2,977 yards with a 4.0 average per carry and has 162 receptions for 1,208 yards.