Defensive end Cassius Marsh #91 of the Seattle Seahawks celebrates a sack against the Denver Broncos during preseason action at Sports Authority Field at Mile High on August 7, 2014 in Denver, Colorado. (Photo by Doug Pensinger/Getty Images)

by Curtis Crabtree
KJR reporter
Twitter: @Curtis_Crabtree

RENTON - The Seattle Seahawks got some positive news on Thursday as rookie defensive end Cassius Marsh was back on the practice taking part in the team's walkthrough prior to Friday night's preseason game against the San Diego Chargers.

Marsh left practice early on Wednesday after banging his knee against a teammate and slowly walked to the locker room while accompanied by members of the team's training staff.

Marsh had an MRI performed on his injured knee that apparently came back with a positive outlook.

"He was at practice today. He got out there and did awesome," head coach Pete Carroll said. "If he's OK tomorrow, he's got a chance to play. We're very, very happy about that."

Marsh had four tackles and a sack in his preseason debut last Thursday against the Denver Broncos and is competing for time in the defensive line rotation.

Carroll said he hopes that linebackers Bobby Wagner, Malcolm Smith and Korey Toomer can all return to practice next week. Toomer and Smith have not participated in training camp, while Wagner has been sidelined since suffering a pulled hamstring early in camp.

Toomer remains on the physically unable to perform list with a hamstring string injury. Smith has been recovering from offseason ankle surgery.

"They'll have to put together a good week (to play)," Carroll said. "We're hopeful that they'll start practicing next week with those three guys."

Receiver Kevin Norwood is already walking around on his injured foot after having surgery last week.

"It looks like he's really doing well," Carroll said. "He feels great. He doesn't feel it at all. He's really encouraged. He's had a sore foot for a long time and he's hoping it's going to be all better."

Carroll said they were happy with his initial impressions and feel he picked up the playbook pretty quickly. He said they won't hesitate to throw him right back into the mix as soon as he is healthy enough to do so.

Guard James Carpenter appears ready to go but center Max Unger may be a game-time decision for Friday night's game. Carroll all but ruled out safety Kam Chancellor from playing as he said they hope he'll be ready before next week's game with the Chicago Bears.