"It was a real nagging situation and we didn't want him to try to tough it out," Seahawks coach Pete Carroll said of Norwood. "He could tough it out and he has in the past, but we wanted to try to fix it and get him right.
"We think it's going to be a really quick recovery. He could make it back by the end [of the preseason]. We have to see how it goes. The guy's been playing with a lot of pain and he just sucks it up and goes through it, but hopefully we figured out how to help him."
Norwood is a fourth-round draft pick from Alabama who has impressed everyone with his sure hands and ability to make tough catches in traffic. How fast he recovers could impact who makes the 53-man roster at the receiver spots.
"He's coming along," Carroll said about Lynch. "We're progressing him along with his reps and turns and each week he'll do a little more. But he needs a lot of work to get back."
Okung and Chancellor returned to practice on a limited basis this week. Both men had offseason surgery. Wagner has a strained hamstring.
Outside linebacker Malcolm Smith has not practiced yet in camp after undergoing ankle surgery, so he will not play Thursday.
Left guard James Carpenter has returned to practice about suffering a calf injury. Carroll said Carpenter will dress out for the game, but they will be cautious about playing him.
Carroll hopes backup quarterback B.J. Daniels will be able to play in the game, but he suffered a slight groin injury in practice Monday, so his availability is uncertain.
Rookie linebacker Kevin Pierre-Louis still has an oblique strain and will not play Thursday. Rookie receiver David Gilreath is out with a concussion, but is expected back next week.