The Bengals placed Hill (ankle) on injured reserve Saturday, Adam Schefter of ESPN reports.
Hill's move to IR will leave rookie Joe Mixon and Giovani Bernard as the team's only healthy running backs, with Mixon in store for the bulk of the snaps out of the backfield. Though he's retained a starting role through each of his seven games this season, Hill hasn't carried the ball more than seven times in any contest and was averaging a meager 3.1 yards per carry, which resulted in Mixon quickly earning the workhorse role. Hill is set to become an unrestricted free agent this offseason.