Broncos receiver Eddie Royal missed his second straight practice Thursday, still recovering from a concussion.
Royal, who also missed practice time last week with a toe injury, collided with a teammate during a punt return late in Denver's victory over Minnesota last Sunday.
Coach John Fox said the team was being cautious with Royal and following the league-mandated medical protocols on concussions.
Running back Willis McGahee (knee) also missed his second straight practice Thursday but said he'll be ready to play Sunday against Chicago.
Left tackle Ryan Clady (knee) was back at practice Thursday after missing Wednesday's session.
Linebacker Von Miller, who missed last week with a thumb injury, practiced for the second straight day and is expected to play Sunday with a cast over his right thumb.