The Seahawks held their second session of organized team activities on Tuesday—and first that was open to the media—and while most of Seattle's 90-man roster was able to participate, a handful of notable players were sidelined as they recover from 2018 injuries or from offseason surgeries.

Among those players not taking part is a significant new addition to the team, defensive end Ezekiel Ansah, who ended last season on injured reserve due to a shoulder injury.

Carroll said it's too soon to know when Ansah will be back, but said "he's got a chance" to be ready for Week 1 of the season.

"He's got a long process to get back," Carroll said. "His attitude is great. He's working every day, involved in all phases of everything that's going on in the training room and with strength and conditioning. It's just going to take a while, and we'll see. We won't know until we get back after the break, until we get to camp really to see how far along we are able to get him. And then we'll see what camp tells us. I can't tell you anything more than other than just got to wait and see, but he's doing everything he can and we're all on it and really fired up about him being here."

As for what Ansah's signing can mean for Seattle's defense, Carroll said, "It's a huge get for us. Ziggy playing last year, at the time when he got hurt, hurt his shoulder, he was as effective a rusher as there was in the league. After seven games, he had four sacks and 20 percent of the time he was causing problems for the quarterback. That's as big a number as anybody had. He's got a chance to be a big factor for us. He'll play just like we played our Leo position in the past. He's exactly that type of athlete in that makeup. We're not going to play anybody the whole time, we'll roll them through it and all, but he has exactly what we're looking for: speed, size, strength, toughness, he's got a great motor about the way he plays. We're really fortunate to have him."

Carroll said defensive tackle Jarran Reed, who had core muscle surgery this offseason, safety Bradley McDougald, who had knee surgery, and safety Delano Hill, who finished the year on injured reserve with a hip injury, will all miss OTAs and next month's minicamp, but should be ready for training camp.

On Reed, Carroll said, "He won't be back in time for minicamp, but he's moving well and he should be fine, but we just can't rush that. We have to take our time on that."

Carroll said Hill is "doing fine, everything is going good. He's getting his weight back up—he lost a little bit of weight when he had to be inactive—but his weight's coming back, his strength is coming back. We got word just yesterday that he's stepping up everything he's doing, because he's in a great spot right now. He won't make it back for the minicamp, but he should be ready to go for camp."

And on McDougald, Carroll said, "He's still rehabbing. He was in last week. He's going to be a camp guy too."

Also sidelined Tuesday was running back Chris Carson, who had "a little bit of work done" on his knee.

"He looks great, he's about a couple of weeks from being back," Carroll said.

Defensive tackle Nazair Jones was also out because of "a little bit of a tender knee."

Also absent from Tuesday's workout were cornerback Tre Flowers, who is away because of a death in the family, and quarterback Geno Smith, who Carroll said, "had a family thing he had to take care of."