The 49ers placed Dwelley (ankle) to the injured reserve Saturday.
Dwelley sustained a high-ankle sprain in Week 13 against the Eagles. He hasn't managed to suit up since, and with his placement on IR, his season is officially over since the 49ers have a max of four games left. Dwelley had one catch on two targets for 12 yards over 12 games this season, operating mostly as a pass-blocking tight end and special-teams player.