Fuller (knee) underwent arthroscopic surgery this week and he is expected to miss several weeks, Dan Wiederer of the Chicago Tribune reports.
The Bears didn't specify which knee Fuller had scoped this week, but this is concerning news nonetheless for a player that's had a history of knee issues. The ominous "several weeks" timetable puts his status for Week 1 in question, which would leave the Bears down one of their starting corners for the opener against the Texans. If Fuller is unable to play in the opener, De'Vante Bausby or Deiondre' Hall would have to step up at the right corner spot.
Trevathan (hamstring) was held out of team drills on Thursday, Brad Briggs of the Chicago Tribune reports.
After dealing with a hamstring injury over the past week, Trevathan was able to return to practice on Wednesday, but went on to be held out of team drills once Thursday's session commenced. It appears he's dealing with some lingering pain, which gives him a questionable status heading into Saturday's preseason game against the Chiefs. The Bears will likely play it safe with their 26-year-old linebacker, so don't be surprised if he remains limited throughout the next few practices.
Miller (concussion) wore a no-contact red jersey during Wednesday's practice, CSN Chicago reports.
A participant in practice for nearly two weeks, Miller is still unable to take contact, which isn't outside the realm of outcomes related to a concussion. With the Bears' third preseason game fast approaching Saturday against the Chiefs, he's running out of time to partake in the "dress rehearsal" for the regular season. Once he receives a clean bill of health, though, Miller will serve as the Bears' unquestioned No. 1 tight end.
Royal (concussion) took part in practice Saturday, Jeff Dickerson of ESPN.com reports.
The concussion protocol has been Royal's home for the bulk of training camp and the preseason slate, but he's progressed from work on the side before Thursday's preseason game in New England to Saturday's appearance in practice. Although his activity level is unknown, he has clearly taken a step in the right direction in his quest to be cleared of symptoms.
Nelson (knee) is inactive for Friday's preseason matchup with the 49ers.
Nelson resumed practicing earlier this week, but he is not ready for game action just yet. With just one preseason game remaining, it's looking likely that Nelson will not play at all during the exhibition season. Both he and the Packers have indicated Nelson will be ready to go by Week 1, but his snaps could be limited a bit early on as he gets himself back into game shape.
Janis (hand) had surgery on his fractured hand and will be out for at least 4-6 weeks, Rob Demovsky of ESPN reports.
Janis fractured his hand during Friday's preseason opener against the Browns and was originally considered week-to-week. Now that he's been ruled out for at least a month, it'll be tough for him to survive the final roster cuts heading into the regular season. Along with Jared Abbrederis and Trevor Davis, Janis was competing for the final spot or two on the receiver depth chart in Green Bay, and his injury could wind up being the deciding factor.
Quarless (suspension) signed a deal with the Lions on Monday, Adam Schefter of ESPN reports.
With tight ends Eric Ebron and Brandon Pettigrew both recovering from injuries, the Lions are facing serious depth issues at tight end for this coming season. And while Quarless will still be suspended for the first two games of the regular season, he had a solid stint with the Packers and would be a formidable option for the team should neither Ebron nor Pettigrew be ready by Week 3. He is eligible to start practicing with the team immediately.