ENGLEWOOD, Colo. — Quarterback Case Keenum (knee soreness), cornerback Adam Jones (sore thigh), linebacker Brandon Marshall (knee soreness) and right tackle Jared Veldheer (concussion protocol) did not participate in Wednesday's practice.

Head Coach Vance Joseph said after the session he is not concerned about Keenum's availability for Sunday's game against the Ravens.

"[His knee is] a little sore," Joseph said. "He's going to practice tomorrow."

Keenum said he could have practiced Wednesday after waking up sore on Monday following a 20-19 win over the Raiders.

"I wanted to practice, but they wouldn't let me," Keenum said. "Good mental day [and I'll] come back and be ready tomorrow."

Keenum wasn't sure when he suffered the injury during Sunday's game, but he said he may consider sliding the next time he takes off to run.

"Yeah, I guess I need to slide a few more times [rather] than try to go running around bouncing off defenders," Keenum said. "I want to get a first down. I want to score. I'm competitive in that way."

Joseph said he's hopeful Keenum and the other players on the injury report will be healthy enough to play Sunday.

"Obviously you don't know as the week progresses, but I'm very hopeful all four guys should have a chance to play," Joseph said.

Veldheer exited Sunday's game against the Raiders with a concussion, and Head Coach Vance Joseph said Wednesday he remains in the protocol.

"It happened on Sunday," Joseph said. "It's only Wednesday. He's progressing. We'll see on Friday how much he can do on the field."

If Jones cannot play Sunday, the Broncos will likely rely on Tramaine Brock and Isaac Yiadom.

"The biggest challenge for Isaac [is] just getting back in the game flow," Chris Harris Jr. said. "When you don't play for two weeks, that's hard. So getting back into game shape, getting back into game plan. I think he'll be ready. He might have a chance to get out there and play with [Jones] being hurt."