SANTA CLARA – Outside linebacker Ahmad Brooks has been placed in the concussion protocol after reporting back to work this week at the 49ers’ practice facility with a headache.
“Ahmad came in and had a bit of a headache,” 49ers coach Jim Tomsula said on Wednesday. “So they put him in the concussion protocol. He wasn’t feeling good. We’ll monitor that and make sure we’re on the safe side there.”
Defensive lineman Glenn Dorsey and quarterback Colin Kaepernick both underwent “successful” surgery on Tuesday, Tomsula said. Kaepernick was placed on injured reserve on Saturday with a torn labrum in his left shoulder.
Tomsula reiterated that the first he knew of Kaepernick’s injury was after the team returned from the bye week. Tomsula was asked if Kaepernick aggravated the injury while the team was off.
“The (first) time I knew anything about the shoulder was obviously when he came back off that open week and that thing was, it was sore on him,” Tomsula said. “He went into the training room and was evaluated. We had the docs evaluate him and sent him for tests.”
Kaepernick first complained of a sore left shoulder after the 49ers’ game against the Green Bay Packers on Oct. 4. But general manager Trent Baalke said Kaepernick was never on the injury report because he “felt good” and was “full steam ahead.”
Dorsey is likely to be placed on injured reserve whenever the 49ers determine that center Daniel Kilgore is ready to be moved to the 53-man roster from physically unable to perform.
With Brooks missing practice time this week and questionable for Sunday’s game against the Arizona Cardinals, Tank Carradine could compete this week in practice for a spot as an outside pass rusher on nickel downs. Carradine has transitioned from an inside pass rusher to the outside.
“You don’t do this in five days. You don’t do this in a week,” Tomsula said. “But Tank has really exchanged his ways with his strength and conditioning -- the way he’s conditioning here.
“You can already visibly see that he’s slimmed down in hips and things. He got the lion’s share of the look reps last week playing in that position. And some in our defense. And (we’re) looking to keep amping that up.”
Running back Carlos Hyde will not practice Wednesday due to the stress fracture in his left foot that has kept him out of action since Oct. 22, Tomsula said.