Jim Harbaugh: 'We kept the doctors busy'

The San Francisco 49ers have already placed 16 players on season-ending injured reserve. To put that in perspective, the previous three seasons they had 19 players combined on I.R. though 14 games.

And yet, the Niners may have to make some more roster moves just to get through Sunday’s season finale against the Arizona Cardinals.

Free safety Eric Reid will see a neurologist on Tuesday, coach Jim Harbaugh said Monday in his weekly media conference, after Reid suffered a concussion in Saturday night’s overtime loss to the San Diego Chargers. It is his third concussion in his two-year NFL career.

Cornerback Perrish Cox was grimacing while holding his left ribs with his right hand in the locker room after the game, suffered an injury to the AC joint in his right shoulder.

And while linebacker Aldon Smith returned to the Chargers game after a concussion was ruled out, Harbaugh was not sure if Smith was suffering from any concussion-like symptoms two days later.

“We kept the doctors busy,” Harbaugh said.