The San Francisco 49ers have a couple players dealing with concussions, with one a new addition to the list. After Sunday's game, head coach Jim Tomsula said tight end Garrett Celek suffered a concussion and would go through the protocol. On Wednesday, Tomsula said that Kenneth Acker was not feeling well on Tuesday, and is now going through the process as well.
Acker was included on the injury report with rib and neck issues, but no concussion. Symptoms do not always happen right away, but symptoms a couple days later are still something to worry about. Acker will now go through the normal concussion protocol before he can be cleared to play on Sunday against the Atlanta Falcons. He will have to be asymptomatic at rest, and then after exertion. It concludes with a basic contact test, and if he is cleared after that, he can play on Sunday.
The 49ers signed cornerback Chris Davis to the practice squad on Tuesday, which was a sign that one of the cornerbacks was likely dealing with some kind of injury. This does not mean Acker will not play on Sunday, but it gives the 49ers a backup option if they need an extra body. The 49ers practice squad already included cornerback Marcus Cromartie.
If Acker ends up unable to play on Sunday, Dontae Johnson or Keith Reaser would likely start in his place opposite Tramaine Brock.