San Francisco 49ers OT Trent Williams (ankle) was placed on the Reserve/Injured list Thursday, Dec. 26. The team also signed free-agent C Matt Hennessy (Falcons) to a two-year contract. Financial terms were not disclosed.

San Francisco 49ers OT Trent Williams (ankle) will not be available for the final two games of the season.

San Francisco 49ers RB Isaac Guerendo (foot, hamstring) and OT Trent Williams (ankle) did not practice on Friday, Dec. 20, and were ruled out for Week 16. Also, DL Robert Beal Jr. (ankle), DE Nick Bosa (hip, oblique) and LB Dre Greenlaw (Achilles, knee) were limited and are questionable and OG Aaron Banks (elbow), S Ji'Ayir Brown (groin), DT Maliek Collins (illness), LB Demetrius Flannigan-Fowles (knee), S Talanoa Hufanga (wrist), OT Jaylon Moore (hip), S Malik Mustapha (chest), LB Dee Winters (neck) and OG Nick Zakelj (illness) practiced in full and were removed from the injury report.

San Francisco 49ers DE Nick Bosa (hip, oblique), DT Maliek Collins (illness) and OT Trent Williams (ankle) did not participate in practice Thursday, Dec. 19. LB Dre Greenlaw (Achilles, knee), OT Jaylon X. Moore (hip), S Malik Mustapha (chest) and OG Nick Zakelj (illness) were limited during practice. OG Aaron Banks (elbow), S Ji'Ayir Brown (groin), LB Demetrius Flannigan-Fowles (knee), S Talanoa Hufanga (wrist) and LB Dee Winters (neck) fully participated in practice.

San Francisco 49ers DT Maliek Collins (illness) and OT Trent Williams (ankle) did not participate in practice Wednesday, Dec. 18. DE Nick Bosa (hip, oblique), LB Dre Greenlaw (Achilles, knee), OT Jaylon X. Moore (hip), S Malik Mustapha (chest) and OT Nick Zakelj (illness) were limited during practice. OG Aaron Banks (elbow), S Ji'Ayir Brown (groin), LB Demetrius Flannigan-Fowles (knee), S Talanoa Hufanga (wrist) and LB Dee Winters (neck) fully participated in practice.

San Francisco 49ers OT Trent Williams (ankle) likely will not play again this season if he does not recover from his injury in the near future, according to head coach Kyle Shanahan.

San Francisco 49ers OT Trent Williams (ankle) and LB Dre Greenlaw (knee) did not participate in practice Monday, Dec. 16.

San Francisco 49ers OG Ben Bartch (ankle), OT Trent Williams (ankle) and S Malik Mustapha (chest, shoulder) did not participate in practice Wednesday, Dec. 11, and have been ruled out for Week 15. DE Nick Bosa (hip, oblique) and DT Khalil Davis (knee) were limited during practice and are listed as questionable. LB Dre Greenlaw (Achilles) fully participated in practice but is listed as questionable. LB Demetrius Flannigan-Fowles (knee), DE Yetur Gross-Matos (knee), LB Dee Winters (ankle), OG Aaron Banks (concussion), S Talanoa Hufanga (wrist) and DE Sam Okuayinonu (wrist) fully participated in practice and are not on the injury report. The 49ers did not practice Wednesday, Dec. 11, so the practice report is an estimation.

San Francisco 49ers OG Ben Bartch (ankles), DE Nick Bosa (hip, oblique), RB Isaac Guerendo (foot) and OT Trent Williams (ankle) did not take part in practice on Tuesday, Dec. 10. Also, LB Demetrius Flannigan-Fowles (knee), LB Dre Greenlaw (Achilles), DE Yetur Gross-Matos (knee), S Malik Mustapha (chest, shoulder), DT Khalil Davis (knee) and LB Dee Winters (ankle) were limited and OG Aaron Banks (concussion), S Talanoa Hufanga (wrist) and DE Sam Okuayinonu (wrist) practiced in full. The injury report was an estimation.

San Francisco 49ers OT Trent Williams (ankle) is still being evaluated, and he is considered day to day. It's uncertain if he'll be able to return in Week 15 against the Los Angeles Rams Thursday, Dec. 12.