INDIANAPOLIS -- The Dallas Cowboys will not tender a contract to Phillip Tanner, making the running back an unrestricted free agent, according to a source.

Tanner was the Cowboys' only restricted free agent, which meant they would have had to tender him a deal worth at least $1.389 million. It is possible, if unlikely, that Tanner could be re-signed for the veteran minimum for a fourth-year player.

Tanner made the Cowboys as an unrestricted free agent out of Middle Tennessee in 2011 and had 56 carries for 149 yards and nine catches for 93 yards with two touchdowns in three seasons. He was also a valuable special teams contributor.