CARSON — Left tackle Joe Staley walked out of the 49ers locker room with a brace on his injured right knee and a glum look on his face, casting concern over the 12th-year veteran’s status.
Staley declined comment and 49ers coach Kyle Shanahan said he did not yet know the severity of Staley’s injury following Sunday’s 29-27 loss to the Chargers.
Right tackle Mike McGlinchey also sustained a first-half knee injury, and when the 49ers opened the second half, they had backup tackles protecting C.J. Beathard, their would-be backup who made his first start this season in place of the injured Jimmy Garoppolo.