"He's just started feeling like himself again last week, so they started to ramp him up over the last few days," Breer said during pre-game coverage. "The good news is that there's been no flare-up, there's been no setbacks. He feels good, so the Niners are optimistic about where he is.
"But this is a scary deal for him. He's determined to play this year. I'd say the next two or three weeks are critical."
Breer also provided an update on rookie wide receiver Ricky Pearsall, who remains on the non-football injury (NFI) list after being shot in the chest during a robbery attempt on August 31.
"Ricky Pearsall, their first-round [draft pick], will return to practice next week," Breer reported.
Once the 49ers open Pearsall's practice window, the team will have 21 days to activate the receiver off the injury list.
Next week, the 49ers will begin preparing for their Super Bowl rematch with the Kansas City Chiefs, followed by a matchup with the Dallas Cowboys before their Week 9 bye.
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