Head coach Kyle Shanahan was unwilling to offer injury updates while speaking with reporters on Tuesday because he didn't have to do so, according to NFL rules, until Wednesday.
"I don't have to talk about it today," Shanahan said. "I'm not giving them (Seattle) a day ahead of us. Legally, I'm allowed to not talk about it until tomorrow."
The team waited until Wednesday to issue an injury report, despite no practice taking place.
Below is that report, along with one for the Seahawks, which were provided by the 49ers Communications staff. It represents an estimation of what participation would have been for a full practice.
San Francisco 49ers Wednesday Practice
Did Not Participate In Practice
DE Dee Ford (quadricep, hamstring)
Limited Participation in Practice
LB Azeez Al-Shaair (knee), G Mike Person (neck), WR Deebo Samuel (shoulder), S Jaquiski Tartt (ribs)
Full Participation in Practice
CB Tarvarius Moore (concussion), DT Jullian Taylor (elbow)
Seattle Seahawks Wednesday Practice
Did Not Participate In Practice
T Duane Brown (knee, biceps), S Quandre Diggs (ankle), C Joey Hunt (fibula), G Mike Iupati (neck), WR Malik Turner (concussion)
Limited Participation in Practice
DE Jadeveon Clowney (core), CB Shaquill Griffin (hamstring), LB Mychal Kendricks (hamstring)
Full Participation in Practice
T George Fant (knee), T Germain Ifedi (knee), C Ethan Pocic (core), LB Bobby Wagner (ankle)
More San Francisco 49ers News
Report: Brandon Aiyuk meeting with 49ers amid contract dispute Tom Pelissero: WR Brandon Aiyuk's meeting with 49ers described as "good," says there's been no trade request San Francisco 49ers Dominate CBS Sports' NFL Top 100 List Former NFL GM explains why 49ers have leverage in Brandon Aiyuk negotiations, predicts final outcome