Najee Harris challenges backups to take his spot
Steelers received much-needed support from unexpected places in win over Colts
See it, hit it, no hesitation': With no proven 3rd running back option, Steelers betting big on Jaylen Warren
Paul Zeise's mailbag: Should the Steelers keep 3 quarterbacks?
Are Najee Harris and Jaylen Warren enough for the Steelers at RB?
Paul Zeise's mailbag: Why is the Steelers running game so bad?
Ron Cook: Steelers backup running backs are showing promise
Ron Cook: Steelers backup running backs are showing promise
See it, hit it, no hesitation': With no proven 3rd running back option, Steelers betting big on Jaylen Warren