The 49ers announced the roster moves Monday without providing details on Haralson's injury, though he is believed to have hurt his left arm during the first half of a preseason win at Denver on Aug. 26. He didn't play in Thursday night's exhibition finale, a 35-3 win over the San Diego Chargers.
Haralson had been among the 11 returning starters for 2012 on Vic Fangio's defense that ranked No. 1 at stopping the run during a resurgent 13-3 season.
Copyright 2012 by The Associated Press