Fields sat out Sunday's contest versus the Raiders at Soldier Field due to a dislocated right thumb he sustained a week earlier in a home loss to the Vikings. Making his first NFL start, Bagent completed 21 of 29 passes for 162 yards with one touchdown, no turnovers and a 97.2 passer rating in a 30-12 win over Las Vegas.
"Working with trainers, [Fields] continues to progress, he's just not there yet," Eberflus said. "Bagent will be our starter until that time [Fields] is cleared … excited for Tyson's opportunity again this week for him to start in a game."
In other injury news, Eberflus revealed that right guard Nate Davis will miss his second straight game with an ankle injury that forced him to exit the Vikings loss.
The Bears coach added that running back Roschon Johnson is expected to return this week after missing the last two games with a concussion he suffered Oct. 5 in a road win over the Commanders.
"He's got another hurdle that he has to clear," Eberflus said, "but it looks real positive and that looks good for Wednesday, but we'll see where it is at that time."
Eberflus also indicated that left tackle Braxton Jones could be designated to return from injured reserve this week after missing the last five games with a neck injury.
"We'll have an update for you on Wednesday, but I know his window could potentially open up at that time," Eberflus said.