The Raiders are releasing quarterback Jimmy Garoppolo and wide receiver Hunter Renfrow on Wednesday.
Bears quarterback Brian Hoyer broke his left arm after taking a hard hit in the second quarter of Thursday's 26-10 loss to the Packers. He was replaced by Matt Barkley.
There is no guarantee that Jay Cutler will be the team's starting quarterback once he is medically cleared to return from a right thumb sprain.
The Bears promoted quarterback Matt Barkley from the practice squad with Jay Cutler nursing a thumb injury.
Bears quarterback Jay Cutler has a sprained thumb on his throwing hand but is not expected to need surgery, coach John Fox said Tuesday.
Quarterback Brian Hoyer has agreed to a one-year deal with the Bears, which provides veteran depth behind starter Jay Cutler.