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Shanahan: 49ers Await Exact Target Date for Aiyuk’s Return as Bosa’s ACL Surgery ‘Went Great’

Milestone-based rehab leaves the timeline open pending a medical clearance date.

Overview

  • GM John Lynch said Brandon Aiyuk is "not close" to returning as he continues rehab from major knee damage.
  • Kyle Shanahan clarified the team does not yet have an exact target date for Aiyuk’s return but expects one once doctors set it.
  • Aiyuk tore his ACL and MCL with additional knee damage last season, making a sub‑one‑year comeback unlikely.
  • Shanahan previously floated a rough Week 6 area as a possibility, which he described as flexible rather than a firm projection.
  • Nick Bosa underwent ACL repair surgery, and Shanahan said he was told the procedure was completed and "went great."