The San Francisco 49ers are preparing for their Week 15 contest against the Los Angeles Rams on Thursday at Levi's Stadium in Santa Clara, California. Both teams have released their official injury reports, which are provided below.
San Francisco 49ers
Out
G Ben Bartch (ankle), S Malik Mustapha (chest, shoulder), T Trent Williams (ankle)
Questionable
DE Nick Bosa (hip, oblique), DT Khalil Davis (knee), LB Dre Greenlaw (Achilles), RB Isaac Guerendo (foot)
Los Angeles Rams
Out
CB Cobie Durant (chest), TE Tyler Higbee (knee)
Questionable
TE Davis Allen (shoulder), DE Tyler Davis (calf), T Alaric Jackson (knee), C Beaux Limmer (knee), WR Demarcus Robinson (shoulder), WR Jordan Whittington (shoulder)
Injury Notes
Left tackle Trent Williams will miss his fourth consecutive game due to an ankle injury. He was absent from Tuesday's practice, the 49ers' only full session of a shortened week of preparation.
Defensive end Nick Bosa, who has been managing hip and oblique injuries, has also missed the past three games. Like Williams, Bosa did not participate in Tuesday's practice but is questionable for Thursday.
Somewhat surprisingly, safety Malik Mustapha's injuries from Sunday's game against the Chicago Bears will sideline him for the matchup against the Rams.
Running back Isaac Guerendo, who sustained a foot sprain against the Bears, was unavailable for practice on Tuesday. He is questionable for Thursday.
Below are Wednesday's walk-through participation reports for both the 49ers and Rams, which were provided by the 49ers Communications staff.
San Francisco 49ers Wednesday Walk-through
Did Not Participate In Practice
G Ben Bartch (ankle), S Malik Mustapha (chest, shoulder), T Trent Williams (ankle)
Limited Participation in Practice
DE Nick Bosa (hip, oblique), DT Khalil Davis (knee), RB Isaac Guerendo (foot)
Full Participation in Practice
LB Dre Greenlaw (Achilles), LB Demetrius Flannigan-Fowles (knee), DE Yetur Gross-Matos (knee), LB Dee Winters (ankle), G Aaron Banks (concussion), S Talanoa Hufanga (wrist), DE Sam Okuayinonu (wrist)
Los Angeles Rams Wednesday Walk-through
Did Not Participate In Practice
CB Cobie Durant (chest), T Alaric Jackson (knee)
Limited Participation in Practice
TE Davis Allen (shoulder), DE Tyler Davis (calf), WR Demarcus Robinson (shoulder), WR Jordan Whittington (shoulder)
Full Participation in Practice
TE Tyler Higbee (knee), C Beaux Limmer (knee)