The 49ers continue to be hit hard by the injury bug this season, as the team placed safety Jaquiski Tartt on injured reserve on Wednesday with a toe injury. Tartt sustained the injury in San Francisco's 34-17 loss to the Green Bay Packers in Week 9.
Tartt must remain on IR for at least the next three weeks.
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In other moves, San Francisco promoted running back Austin Walter from the practice squad. The 49ers also signed quarterback Josh Johnson to the practice squad.