Wallow (hamstring) does not have a designation for Sunday's clash against Las Vegas.
Wallow was sidelined due to a strained hamstring Weeks 6 and 7, but San Francisco's Week 8 bye gave him some extra recovery time. With an LP/LP/FP practice progression under his belt this week, the veteran linebacker is set to return to action against the Raiders. Wallow typically plays less than a quarter of the 49ers' defensive snaps, so he's not a recommended IDP option in fantasy.