RENTON — Seahawks strongside linebacker Mychal Kendricks tore his ACL on Sunday against San Francisco and will be sidelined for the rest of the season, Seattle coach Pete Carroll said Monday.

Carroll said Kendricks will need surgery and will be replaced in the lineup by Cody Barton.

Carroll also said receiver Jaron Brown will be out for a few weeks with a sprained knee. Carroll said that could compel the team to look to add a receiver because the status of Malik Turner is uncertain after he missed the 49ers game with a concussion.

Brown’s injury left Seattle with just four healthy receivers for the final three quarters Sunday.

“We’re talking about it,” Carroll said of possibly adding to the team’s depth at receiver. “Really depends on Malik. Malik Turner is a really well-versed player in our system who can do all kinds of stuff and we missed not having him out there. He’s recovering from concussion syndrome stuff so he’s got to make it back and I can’t tell you that he’s fully back yet.”

(Rich Boudet / The Seattle Times)
49ers 26, Seahawks 21

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Seattle did add some receiver depth later in the day, signing Jaylen Smith to the practice squad, according to a report from Tom Pelissero of the NFL Network. The 6-2, 219-pound Smith played at Louisville and was in camp with the Ravens after going undrafted. Seattle also has Penny Hart on its practice squad.

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Kendricks has started 14 games this season, missing games against the Rams and Panthers with a hamstring injury.

Kendricks was injured with 5 minutes, 46 seconds to play in the third quarter when the 49ers completed a 49-yard pass to fullback Kyle Juszczyk. Barton then played the rest of the game.

“He did all right,’’ Carroll said of how Barton filled in for Kendricks. “He did a solid job. I’m hesitant to say he played great because he missed a couple of opportunities there but he is a good football player for us and get him a whole week of practices and all the reps he will do a nice job for us.’’

Kendricks, 29, also missed the end of the 2018 season with a knee injury suffered in December against the Vikings.

Kendricks signed a one-year contract with the Seahawks in March with a base value of up to $4.5 million if active and available for every regular-season game. He will be an unrestricted free agent at the end of the season.

“Hope we’ll get him back with us,” Carroll said.

In better injury news for the Seahawks, Carroll said free safety Quandre Diggs — who missed the final two regular-season games with a high ankle sprain — might be back against the Eagles in the wild-card playoff game Sunday.

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“Because the workout went so well yesterday the trainers are saying he has a really good chance to play this week,’’ Carroll said. “We think he will have a chance to practice Wednesday and we’ll know a lot more when we get him Thursday after he practices. But good positive signs from the training room.’’

Lano Hill has started in place of Diggs the past two weeks.

Carroll said Monday that Hill has gotten the call ahead of rookie Marquise Blair due to his experience in Seattle’s system.

“He just has experience on him really,” Carroll said, noting that just allows Seattle to do more stuff defensively.

Lynch makes it through just fine

Carroll said Marshawn Lynch appeared no worse for the wear following his 12 carries Sunday in what was his first football game in more than 14 months.

Carroll joked that Lynch had a Band-Aid on his knee but said, “He’s fine.”

“He came out of the game really healthy, at least today he is,’’ Carroll said. “And he contributed, so that gives us really a really good 1-2 punch with he and (Travis) Homer running the football in the playoffs. Last week we didn’t know where we were going to be but we feel like we have a style and a way to go about it, so that’s’ a positive coming out of this game moving forward.’’

Clowney on track

Jadeveon Clowney played 33 of 50 snaps Sunday in what was his first game back in three weeks while dealing with a core muscle injury. He had two tackles, one for a loss.

The best news, Carroll said, is that he also appeared to make it through the game fine and is on track to play against the Eagles.

“He’s sore today but he played throughout and should be at practice and all that so we are working through it,’’ Carroll said. “But we are counting on him being available to us.’’

Fant played well, but Duane Brown might make ‘miraculous recovery’

Carroll said the recovery of Duane Brown, the team’s starting left tackle, from minor knee surgery has gone “pretty well to this point.’’

Well enough that he didn’t rule out that Brown might be able to play against the Eagles, though he added that “would be a miraculous recovery.’’

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That might mean it’s more likely Brown wouldn’t be back until the following week if Seattle wins.

But the good news there is that Carroll said Brown’s replacement, George Fant, did a solid job — the Seahawks allowed just one sack.

Fant had a stiff back late in the game — that was why he was slow to get up on the final series just before the ill-fated delay penalty — “but we think he’s fine.’’

As for how Fant played, Carroll said “going against one of the best pass-rushing groups in the NFL and he handled what he needed to handle pretty well.’’

Seahawks bring in two more RBs for tryouts

While Lynch’s return, as well as that of Robert Turbin, replenished the team’s running back position, the Seahawks are continuing to look just in case.

Carroll confirmed a report that Seattle tried out another former Seahawk — Alex Collins — as well as Roc Thomas, who spent last year with the Vikings and had eight carries for 30 yards.

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Collins obviously is an interesting name after being a fifth-round draft choice of the Seahawks in 2016 and then being waived before the 2017 season and spending two years with the Ravens, gaining 973 yards in 2017.

Collins was waived by the Ravens in March after being arrested following a car crash and later pleading guilty to possessing more than 10 grams of marijuana and possession of a handgun in a vehicle. He was suspended three games but later was reinstated.

“We are just making sure we are doing everything we can and we are just looking, continuing to compete, who is out there and all that,’’ Carroll said. “Alex has had some good play and the guys who saw him said he looked pretty good in the workout.’’