Derek Carr left Thursday night’s AFC West matchup early because of what Jon Gruden called a “significant” groin injury. The veteran Raiders quarterback’s rest-of-season status can be considered in doubt. Carr is facing a 10- to 14-day return timetable, Ian Rapoport of NFL.com notes. This puts his availability for next week’s pivotal Dolphins game in question, though Rapoport adds Carr will push to return for what could be an elimination game against another fringe AFC contender. Carr has not missed a game due to injury since 2017. The former MVP vote-receiving passer has only missed two regular-season games in seven years. Marcus Mariota played well in relief of Carr on Thursday, and Carr’s status going into next weekend stands to give the Dolphins some extra work due to the differences in the Raiders QBs’ skill sets.

Here is the latest from the West divisions, moving first to another team’s quarterback situation.

• Drew Lock has shown some potential as a long-term answer this season — including last week in Charlotte — but ranks 28th in QBR and has thrown 13 INTs in 10 games. The Broncos sat out this year’s veteran QB market, but Troy Renck of Denver7 notes the team is likely to bring in a veteran to compete with Lock (or potentially replace him) next year. A similar batch of vets — Andy Dalton, Cam Newton, Jameis Winston — on track to be available again would qualify as competition, and the Broncos were also high on Sam Darnold in 2018. A trade for Matthew Stafford, a scenario Renck mentions, would be to replace Lock. The Broncos have used four different Week 1 starting QBs since Peyton Manning‘s retirement, moving from Trevor Siemian to Case Keenum to Joe Flacco to Lock.
• Sean McVay is not ruling out an Andrew Whitworth regular-season return, and it sounds like the Rams having their left tackle back for the playoffs is realistic. “Andrew is doing great,” McVay said. “He continues to amaze me. He’s somebody we could potentially really push to have him play whether it’s the (Week 17) Cardinals game or next week. If we’re fortunate enough to get an opportunity to play after the regular season, I think that’s the goal, but nothing’s guaranteed for us.” Whitworth suffered MCL and PCL tears Nov. 15 but was believed to be ahead of schedule on his recovery timetable.
• A Rams positive COVID-19 test resulted in offensive lineman Bobby Evans and safety Nick Scott landing on the reserve/COVID list; they will miss Week 15, McVay said (via ESPN.com’s Lindsey Thiry, Twitter links). The Rams also held starting center Brian Allen and rotational pass rushers Justin Hollins and Ogbonnia Okoronkwo out of practice Friday, though McVay expects the latter trio to play Sunday.
• The 49ers‘ Arizona arrangement will extend through season’s end. Santa Clara county extended COVID-19 restrictions that have prevented the 49ers from playing at Levi’s Stadium, but the Cardinals will permit their division rival to use the stadium for their Week 17 game against the Seahawks, Nick Wagoner of ESPN.com notes. The 49ers will also be in Glendale next week but will do so as the road team against the Cardinals.