Several 49ers offensive linemen were absent from practice on Thursday. In addition to those already on injured reserve—tackles Trent Williams and Jaylon Moore—guards Aaron Banks and Spencer Burford, along with tackle Colton McKivitz, were also unavailable.
Banks is out for the remainder of the season after suffering an MCL injury. Head coach Kyle Shanahan expressed hope that Burford, who was injured against the Miami Dolphins, might be ready to play on Monday night. However, it sounded like a long shot.
McKivitz was limited during Wednesday's practice due to a knee injury, so missing Thursday's session raises additional concern.
Linebacker Dre Greenlaw also did not practice and is not expected to return this season.
On a positive note, running back Isaac Guerendo (limited) and defensive end Nick Bosa (full) participated in practice, signaling that both should be ready for Monday night's matchup against the Lions. The 49ers will hold one more practice—on Saturday—before the game.
Below are Friday's practice participation reports for both the 49ers and Lions, which were provided by the 49ers Communications staff.
San Francisco 49ers Friday Practice
Did Not Participate In Practice
G Aaron Banks (knee), DE Robert Beal (ankle), G Spencer Burford (calf), LB Dre Greenlaw (calf), FB Kyle Juszczyk (illness), T Colton McKivitz (knee)
Limited Participation in Practice
S Ji'Ayir Brown (ankle), DE Leonard Floyd (shoulder), RB Isaac Guerendo (foot, hamstring)
Full Participation in Practice
LB Tatum Bethune (knee), DE Nick Bosa (hip, oblique), DT Jordan Elliott (knee), S Talanoa Hufanga (wrist), LB Dee Winters (chest)
Detroit Lions Friday Practice
Did Not Participate In Practice
RB David Montgomery (knee)
Limited Participation in Practice
CB Terrion Arnold (illness)
Full Participation in Practice
G Graham Glasgow (knee), WR Kalif Raymond (foot), LB Jalen Reeves-Maybin (neck)
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