Kyle Shanahan concerned about Arik Armstead after 49ers rule him out
The 49ers ruled out defensive tackle Arik Armstead (foot, knee), linebacker Oren Burks (knee), tight end Ross Dwelley (ankle) and receiver Jauan Jennings (concussion) for Monday’s game against the Ravens.
This will be the third consecutive game Armst... [587 chars]
Source: NBC Sports
