ENGLEWOOD, Colo. — As the Broncos approach their Week 5 game against the Steelers, Teddy Bridgewater's status remains uncertain.

Bridgewater is in the NFL's concussion protocol after suffering the injury on Sunday against the Ravens, and Head Coach Vic Fangio was unsure of when Bridgewater would return.

Fangio said he also did not yet know how the team would approach the reps at the quarterback position this week in practice.

"We'll have more information by Wednesday, and that will have more of a determining factor," Fangio said.

Fangio said it's possible Bridgewater could return to practice with limitations earlier than Friday.

"He can't go out and full practice, but he may be able to do some stuff," Fangio said.

Fangio did not rule out the possibility that Bridgewater could start against the Steelers without practicing.

Diontae Spencer, who suffered a chest injury one play before Bridgewater took a hit to the head, will be day to day this week. Pat Surtain II is also day to day with a "midsection" injury.

Fangio said the hits on both Spencer and Bridgewater "should have been called, obviously." Neither play was flagged, despite the apparently illegal hits.

"I sent a video in to the officiating office during the week showing similar hits that they've had and gotten away with, and it continued," Fangio said. "So, you can see sending videos in to the officiating office can be fruitless at times."

Guard Dalton Risner will "probably" be able to return this week, but Fangio remains unsure about guard Graham Glasgow's status.

Fangio said Risner was "not close enough" to being able to play against the Ravens after being listed as questionable.

Cornerback Ronald Darby is also eligible to return from injured reserve this week, and Fangio said the Broncos will "see where he's at come Wednesday."