The Bears' starting quarterback for Monday night's home game against the Eagles won't be determined until later in the week, but coach Ben Johnson is comfortable with every option.

"We're fortunate here," Johnson said Wednesday. "We've got three guys that can play ball in this league, that have won games in this league. [General manager] Ryan [Poles] has constructed the room in a way that we feel really good about whoever ends up playing for us, and that showed in the preseason, shows up in practice every single day."

Starter Caleb Williams exited last Sunday's game against the Vikings with a hamstring injury midway through the fourth quarter. The Bears coach told reporters Monday that Williams is week-to-week and is not expected to practice this week, though Johnson did not rule him out for the Eagles contest.

Backup Tyson Bagent sustained a concussion after replacing Williams versus Minnesota, remains in concussion protocol and is unable to practice.

If Williams and Bagent can't play Monday night, the Bears would start third-stringer Case Keenum, an experienced 14-year NFL veteran. The backup would likely be undrafted rookie Miller Moss, who is currently on the practice squad.

"We're at a point right now, not sure who the starter is going to be on Monday night," Johnson said. "We'll let this thing play out and we'll go from there. Here's what I know: we know Case is the one that is practicing today. We'll figure it out as we go. Our guys will rally around [him]. These guys are all capable, and they know that. They've seen them in action here over the last year and a half. We feel really good about that situation."

Johnson doesn't anticipate much variance in the game plan depending on who starts at quarterback against the Eagles.

"I mean, it's the same thing," he said. "We're going to look for plays that we feel like might have a chance to get guys open, create some space in the passing game, running lanes in the running game. It's up to the supporting cast. It's not just one player; it never is. We've got 10 other guys out there with our quarterback. They've got to help champion the cause and carry their weight as well.

"As far as I'm concerned, not a whole lot of changes from a coaching perspective. We're going to come up with as good of a game plan as we possibly can, teach it as well as we possibly can. Let's have a great week of practice here, and we'll go from there."

Injuries at the most important position on the field present the Bears with a chance to overcome adversity.

"It's opportunity," Johnson said. "It's the way I see it. I think our guys see it as that as well. One of those things that everyone outside the building, I am sure, is writing us off and telling us it can't be done, and we really relish that. So, guys will step up to the plate, guys that maybe we don't anticipate or expect. We have a really talented team and it's been that way.

"I've been saying that in the spring. I've been saying that throughout camp. High expectations for where this year can go for us, so we're going to continue to get better. We're in a race to improve. Nothing's changed. It's still the month of September in that regard. There's still plenty of things we need to clean up from last week, and we need a great week of preparation here this week. So, that's really all we're concerned about right now."

Keenum, who is in his second year with the Bears, has not played in an NFL regular-season contest since 2023 when he made two starts for the Browns. Since entering the league as an undrafted free agent from Houston, he has appeared in 80 games with 66 starts for the Texans (2012-14 and 2023), Rams (2015-16), Vikings (2017), Broncos (2018), Washington (2019), Browns (2020-21) and Bills (2022), completing 62.3% of his passes for 15,175 yards with 79 touchdowns, 51 interceptions and an 84.6 passer rating.

Although Keenum practiced with the No. 1 offense Wednesday, he feels the mental reps he's been taking have prepared him to play.

"I feel very prepared," he said. "I think people don't realize, in general, in the NFL how little reps go around during a game week. The starter usually gets all of the first-team reps and [there are] maybe a few for the backup here and there. The backup gets all the scout-team reps. Other than that, it's kind of mental reps. I'm standing behind Caleb, Tyson, seeing where those guys are. You're trying to bank stuff from training camp. But I feel very prepared. It's what I do every week. It's what I've done for a long time. I've backed up a long time in this league. If my name's called, I'm excited to be out there."

In three preseason games, Keenum completed 25 of 40 passes for 354 yards with two TDs, no interceptions and a 107.7 passer rating. In the preseason opener against the Browns, he connected on 9 of 10 passes for 151 yards with two touchdowns and a perfect 158.3 passer rating.

"I've called a lot of practices for him, unscripted practices," Johnson said. "I've called a lot of preseason games for him so far. He's at the point of his career where he's like another coach in a lot of ways. He's seen a ton. He knows what good football looks like. He knows what a healthy locker room looks like and he's a key part of what we do. He and I talk on a regular basis, from a quarterback meeting perspective to big lens with the team. He's a big part of this, so I'm not concerned at all about calling the game for him or how he can potentially play on Monday night."

Johnson lauded Keenum's impressive resumé. Starring at the University of Houston, he still holds FBS career passing records with 19,217 yards and 1,546 completions and is tied with 155 TD passes.

"Not just his NFL career, he was a prolific college quarterback," Johnson said. "He's got numerous records I think that still stand. He's been a baller from the day he was born, from what I can tell.

"He's got that way about him. He's got a knack. His teammates gravitate to him. I think that's a good starting point for a quarterback. He's up there in years a little bit, but that experience has really paid off for him. He sees the game the same way we do. I think he accelerates through his progressions because he's seen so many things over the course of his time. He's been in so many different offenses. So, in a lot of ways he might be a step slower than he was when he first entered the league, and yet his mind is going so fast it helps catch him on up. And he's playing as good of football as he probably has his entire career, is what he'd tell you."

Informed of Johnson's comments about him, Keenum said: "I appreciate it, man."

"He's going to go down as probably the best play caller, play designer, coach, all of the above when it's all said and done," Keenum said. "Some of the stuff that man does is unbelievable — the way he sees the game, the way he's able to prepare guys, the way he's able to lead.

"I'm the biggest Ben Johnson fan. I'm here right now because of him. I was retired and he called me two years ago, basically. In my own head, I had prepared to be ready, but there weren't a lot of phone calls coming. He called. We met. We were supposed to meet for like 15 minutes and wound up talking for two-and-a-half hours. I was like, 'I want to do it. I want to do it with this guy.' It's been such a pleasure. I found the love of football again working with him. I can't say enough good things about Ben."