San Francisco 49ers OT Trent Williams (ankle) did not practice Saturday, Oct. 21, and is listed as doubtful on the Week 7 injury report. LB Dre Greenlaw (hamstring) was limited at practice and is questionable. OG Aaron Banks (ankle), CB Isaiah Oliver (knee), and S George Odum (quad) were full participants at practice and carry no injury designation.
49ers.com