Wide receiver Ray-Ray McCloud is recovering from a rib injury and was able to practice on Wednesday while wearing a blue no-contact jersey. However, the key special-teams player wasn't on the practice field on Thursday.
Running back Elijah Mitchell and guard Spencer Burford, both dealing with knee injuries, did not practice but were seen getting some work on the side.
Defensive tackle Arik Armstead emerged from Sunday's game against the Philadelphia Eagles with knee and foot issues and is not expected to play against the Seahawks. Tight end Ross Dwelley will miss multiple weeks after suffering a high-ankle sprain.
Cornerback Darrell Luter, dealing with a hamstring injury, was also absent.
Below are Thursday's practice participation reports for both the 49ers and Seahawks, which were provided by the 49ers Communications staff.
Update: The 49ers sent out a correction, sharing that tackle Trent Williams did practice on Thursday.
San Francisco 49ers Thursday Practice
Did Not Participate In Practice
DT Arik Armstead (foot, knee), G Spencer Burford (knee), TE Ross Dwelley (ankle), CB Darrell Luter (hamstring), WR Ray-Ray McCloud (rib), RB Elijah Mitchell (knee)
Seattle Seahawks Thursday Practice
Did Not Participate In Practice
LB Jordyn Brooks (ankle), CB Tre Brown (heel), WR D'Wayne Eskridge (ribs)
Limited Participation in Practice
S Jamal Adams (knee), G Anthony Bradford (knee), RB Zach Charbonnet (knee), T Abraham Lucas (knee), QB Geno Smith (groin), RB Kenneth Walker (oblique), DT Leonard Williams (ankle)
Full Participation in Practice
WR Jake Bobo (knee, shoulder), C Evan Brown (thumb), WR Dareke Young (abdomen)
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