Garret Wallow Sidelined with Hamstring Strain, Expected to Miss at Least Two Weeks

49ers linebacker Garret Wallow is out with a hamstring strain, with the team indicating he'll miss at least a couple of weeks. The injury is confirmed as a hamstring strain, though the grade is inferred from the "at least a couple of weeks" language — consistent with a Grade 1 to low-Grade 2 presentation, but not confirmed by any disclosed imaging.

The injury date has been resolved to 2026-10-11 based on prior thread context, meaning Wallow is approximately one day into his recovery window as of this report. Hamstring strains in linebackers follow a well-studied biological timeline: Grade 1 injuries typically resolve in one to two weeks, while Grade 2 injuries require three to six weeks. The "at least a couple of weeks" framing edges toward the Grade 1 upper bound or a mild Grade 2 — the biology supports that range, and the team's language does not conflict with it.

For a linebacker, hamstring function is critical across both run-fill contact and coverage athleticism. Even at the lower end of the severity spectrum, the NFL reference data flags meaningful reinjury risk when hamstring strains in linebackers are compressed. Wallow sits at the very start of that window, so there's no trajectory yet to read. Watch for practice participation reports mid-week — a DNP-to-LP progression across the week would be the first positive signal.