The Seahawks host the Lions on Sunday and should have most of their 53-man roster available, but there are a few injury and COVID-related issues affecting the team heading into the game. 

Right tackle Brandon Shell, who has been dealing with a shoulder injury for several weeks, is listed as doubtful and could very well be done for the season, Seahawks coach Pete Carroll said Friday. 

"He's got some questions to get answered before he comes back and plays another game," Seahawks coach Pete Carroll said. "We're looking to take care of him, making sure that we don't rush him back for a game or two here. He's really worked hard to get back and hasn't been able to get over the hump on it. It's looking like, he's getting second and third opinions on his shoulder to make sure he does the right thing. I'm really encouraging him to do that. It doesn't look like it's potentially going to happen here in the next week."

Presuming Shell doesn't play, rookie Jake Curhan is likely in line to make a fourth straight start. 

The Seahawks will also be without rookie linebacker Jon Rhattigan, who injured his knee in Seattle's Week 15 game against the Rams, and who will need surgery to repair his ACL injury. 

"Jon has to get his knee fixed," Carroll said. "It's an ACL injury, so we have to take care of him. It's going to be a while."

Defensive tackle Poona Ford is ready to play despite showing up on the injury report early in the week with a concussion. 

"He really flew right through it, he practiced yesterday and today so he's fine," Carroll said. 

On the COVID-19 front, the Seahawks have only two players still on the list after getting L.J. Collier back on Friday, cornerback Bless Austin and left guard Damien Lewis. Carroll isn't expecting either player back on Sunday. 

"I've got to wait and see on Bless, and Damien, and I think Damien is out of days," Carroll said. "I think we're running out of time on both those guys. It's going to be hard to make it back." 

Carroll said that while Tyler Lockett had some more substantial symptoms when he was out with COVID-19, for the most part everyone else to go on the list in recent weeks has had a mild case or been asymptomatic. 

"For the most part, guys have had no factor, it's barely been a symptom to report," Carroll said. "There have been a couple of guys that have felt under the weather, but it's been a very mild impact. Tyler, it hit him pretty good. We are pleased to get these guys back, the protocol and the process of it has really accelerated it. It makes it very accessible for the guys to return."