The 49ers have released special teams ace Kassim Osgood, reports Matt Maiocco of CSNBayArea.com (via Twitter).
They used the roster space in order to take Alex Boone off the exempt list following his holdout and return him to the active roster.
Osgood made a name for himself with the Chargers, making three Pro Bowls as a special teams player. He also spent time with the Jaguars and Lions, though he never developed into a receiving threat.