Avril has been sidelined since suffering a neck/spine injury in Week 4. He'll have to miss at least eight weeks on injured reserve, but it's possible that he will miss the remainder of the season. Carroll has said that Avril's injury could be a long-term issue, and when asked last week if it could sideline him for the rest of the season, the coach didn't rule out that possibility.
Avril, 31, was injured in Week 4 against the Indianapolis Colts, when he dived to tackle Jacoby Brissett from behind and his chin landed on the back of the quarterback's cleats. Carroll said Tuesday that Avril is continuing to see specialists and that the team could learn more about his status over the next few days.
Avril is in his 10th NFL season and his fifth with the Seahawks. He's coming off a career-high 11.5 sacks in 2016, which helped him make his first Pro Bowl.