Detroit Lions running back Ty Johnson has cleared concussion protocol and is available to play Sunday against the Dallas Cowboys.
Johnson, a rookie out of Maryland who became Detroit's starting back after Kerryon Johnson went on injured reserve last month, suffered the concussion last week against the Chicago Bears.
He practiced Thursday and Friday and was initially listed as questionable.
Johnson has 44 carries for 153 yards this season along with 13 receptions for 58 yards. He will be part of a backfield committee, along with J.