SANTA CLARA -- Ahmad Brooks was back at practice Wednesday after clearing the league’s concussion protocol, but running back Carlos Hyde (foot) and linebacker Michael Wilhoite (ankle) were among the players who were not practicing.
Hyde has not practiced or played since the week of Oct. 22. He is dealing with a stress fracture in his left foot that has continued to give him discomfort despite Hyde staying off the foot for six weeks. Wilhoite is new to the injury report this week. He and fellow starter NaVorro Bowman didn’t practice Wednesday. Neither did tight end Garrett Celek, who has a high-ankle sprain that is expected to hold him out for several weeks.
Tight end Blake Bell (finger), tackle Erik Pears (knee) and guard Alex Boone (triceps) likely will be limited in practice.
Brooks also is dealing with a toe injury but figures to start against the Bears after missing Sunday’s game against the Cardinals. Brooks complained of a headache following the 49ers’ Nov. 22 loss to the Seahawks and was in the league’s concussion protocol last week.
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Rookie Eli Harold started in his place against Arizona but Corey Lemonier ended up playing more snaps -- 44 to 41 for Harold. Also, Tank Carradine saw some snaps as an outside pass rusher in the team’s nickel pacakage.