DETROIT — The Pittsburgh Steelers have made rookie running back Kaleb Johnson a surprise inactive against the Detroit Lions. They have just three running backs on the roster, and some other players who could end up playing at running back if injuries arise is Connor Heyward or Jonnu Smith.

Meanwhile, the Steelers will still be without wide receiver Roman Wilson, who has been made inactive the last three weeks after the additions of Adam Thielen and Marquez Valdes-Scantling to the room. Head coach Mike Tomlin said that Scotty Miller’s ability to be a backup punt returner is one of the key reasons he is active over Wilson.

As for injuries, there is nothing unexpected there. Outside linebackers T.J. Watt and Nick Herbig were ruled out. Jack Sawyer, a rookie out of Ohio State, will make his first career start.

Cornerback James Pierre will miss his second straight game with a calf injury. Asante Samuel Jr. will fill in for him, and he nabbed a pick against the Dolphins a week ago. The Steelers elevated Daryl Porter Jr. to give them some depth.

Guard Isaac Seumalo is sidelined with a triceps strain. With him out, the Steelers will turn to Spencer Anderson to start there.

Quarterback Will Howard will continue to serve as the emergency third quarterback.