DuJuan Harris is expected to get some snaps at running back against the Buccaneers after the 49ers promoted him from the practice squad on Saturday. To make room they released defensive lineman Taylor Hart, who has been inactive for all but one game this season.
Harris is one of three runners likely to fill in for Carlos Hyde, who will miss Sunday's game with a shoulder injury. Hyde, the league's 11th-leading rusher, was injured in the third quarter of the recent loss to Buffalo but said he expects only to miss one game. The 49ers have a bye next week.
Harris, 28, was a late-year addition last year and one of several backs who filled in when Hyde suffered a stress fracture to his foot early in the season. Harris' first game for the 49ers came against Detroit on Dec. 27 when he rushed 11 times for 73 yards. He's been on and off the 53-man roster this season.
The bulk of the carries Sunday likely will go to second-year player Mike Davis and to heretofore third-down running back, Shaun Draughn. Davis, a fourth-round pick a year ago, reshaped his body in the offseason and is coming off a promising preseason.