49ers head coach Kyle Shanahan gave a list of players who won’t practice on Wednesday:
DT Arik Armstead (foot, knee)
RB Elijah Mitchell (knee)
TE Ross Dwelley (ankle)
RG Spencer Burford (knee)
CB Darrell Luter (hamstring)
Wide receiver Ray-Ray McCloud is limited with a rib injury.
Shanahan said he’d be “surprised” if Armstead plays against the Seahawks on Sunday. The good news is that Armstead’s injury doesn’t sound like it’ll be long-term. If Arik needs rest, early December is the time for him to heal as the Niners need one of their best players healthy for a January playoff run.