Seattle Seahawks linebacker Bruce Irvin will miss Sunday's game against the San Francisco 49ers with a sore knee.

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Seattle Seahawks linebacker Bruce Irvin will miss Sunday’s game against the San Francisco 49ers, coach Pete Carroll said during his weekly Wednesday press conference.

Carroll said Irvin will not play unless he has “a miraculous recovery.”

Irvin suffered a sprained knee in the fourth quarter of Sunday’s loss to Arizona, on the play when Bobby Wagner returned a fumble for a touchdown.

Carroll said Irvin will be replaced by Mike Morgan at strongside linebacker and with Frank Clark and Cassius Marsh playing more in nickel situations, when Irvin often moves to the line of scrimmage as an edge rusher.

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In the past the Seahawks have at times moved K.J. Wright to the strongside and moved Kevin Pierre-Louis to the weakside to replace Irvin. But Carroll said they want to leave Wright where he is and insert Morgan into the SLB role.

Here are a few other personnel notes:

— Carroll said the status of WR Paul Richardson is still unclear after he suffered a hamstring injury on a play in the second quarter when he caught a 40-yard pass. Carroll said Richardson would sit out Wednesday’s practice and they would likely know more on Thursday. He said Richardson feels fine but that an MRI showed some damage and they want to be careful with it and make sure before Richardson would return to practice. Carroll said Richardson will “jog tomorrow” and then they will have a better sense of where he is.

— WR Tyler Lockett got his ankle rolled up on late in the game but is fine, Carroll said.

— WR Doug Baldwin is nursing a sore toe but said he should be fine for Sunday’s game.

— Carroll said he hopes that CB Jeremy Lane will be able to play Sunday in what would be his first game since suffering a broken wrist and ACL injury in the Super Bowl. Lane returned to practice last week. The Seahawks will have to make a roster move to bring him off the Physically Unable to Perform List and that may not happen until Saturday. But Carroll said he “really” hopes Lane will be able to play Sunday.

— Carroll also talked about the move to release Chris Matthews and sign Kevin Smith. He said of Matthews that “he busted his tail,he was a hard worker and all of that we just wanted to make this move to give Kevin a shot and see how he would do.” Carroll said Smith’s ability to play all three receiving positions is critical right now as well as his special teams and indicated that’s why he got the call instead of others on the practice squad. Carroll also said Smith has “a different body type” than Matthews and when it comes to special teams “he does different things at this time and we think it will help us a little bit more.”

— Carroll said Marshawn Lynch felt better on Monday than he did on Saturday when he was questionable to play with an abdominal injury, seeming to indiate he will be fine this week. Lynch is scheduled to sit out Wednesday as a rest day .

— The Seahawks also added Douglas McNeil III to the practice squad as a receiver. He was with the Seahawks during training camp playing both cornerback and receiver but is wearing an offensive jersey and listed as a receiver. The Seahawks released DL Julius Warmsley to make room for McNeil.