According to Cam Inman, the San Francisco 49ers’ beat writer for the San Jose Mercury News, rookie free safety Eric Reid has been officially diagnosed with a concussion.
Reid suffered the concussion after attempting to tackle Carolina Panthers fullback Mike Tolbert. He took a vicious hit to the side of the head and lay motionless on his back for a few minutes as members of both teams and the 49ers training staff gathered around.
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Reid eventually got up and made it to the sideline under his own power, but has now been officially diagnosed with the head injury.
This marks the second concussion of the year for the promising rookie after sustaining another against the Seattle Seahawks in week 2.
San Francisco selected Reid in the first round of the 2013 NFL Draft and the rookie quickly earned the starting role at free safety, replacing Dashon Goldson who left to free agency last offseason.
The 49ers have also lost tight end Vernon Davis to a concussion in this game in addition to defensive tackle Ray McDonald to an ankle injury and tight end Garrett Celek to a hamstring injury.
San Francisco leads Carolina 9-7 in the 4th quarter.