Denver Broncos rookie Peyton Hillis has been spending the week brushing up on plays from both the fullback and tailback spots.
He's not sure where he'll be needed since the Broncos are so short-handed in the backfield. Hillis was switched to tailback after after Selvin Young (groin) and Ryan Torain (left knee) went down against Cleveland.
The team recently brought back Tatum Bell to bolster the thin running back corps.
Bell was released by the Lions in early September, and has been working as a manager at a cell phone store in nearby Aurora.