The San Francisco 49ers' defense, featuring a notable influx of young talent, demonstrated its impact in a hard-fought 32-29 victory over the Seattle Seahawks on Sunday.

With veteran defensive end Nick Bosa sidelined by injury and linebacker Dre Greenlaw ejected early in the game, several less experienced defensive players stepped up to make pivotal plays. Renardo Green initiated the 49ers' success by intercepting Sam Darnold on Seattle's opening drive and again on the first possession of the second half. Rookie Gracen Halton provided a significant momentum swing by stripping George Holani of the ball near the end of the first half and recovering it for a touchdown, also adding a sack.

Further contributions came from Malik Mustapha, who recovered a fumble that led to a short touchdown drive, and from rookie Jaden Dugger and Sebastian Valdez, who each recorded their first career sacks. This marked the first time since at least 1991 that the 49ers achieved at least three sacks and four takeaways in a single game from players aged 25 or younger.

"When you're out there, it's your time to play," Green stated. "It doesn't matter if you're an old guy or a young guy, we all are held to the same standard. That's how the players hold accountability for each other, and that's how our coaches also push us. So, it doesn't surprise me that young guys are making plays. We do it all the time in practice."

The defensive line's performance was particularly encouraging, addressing the team's ongoing search for consistent quarterback pressure. San Francisco ranked last in the NFL in sacks in 2025, with Bosa missing a significant portion of the season due to injury. Despite Bosa's absence from the past three games, Halton and Valdez were instrumental in pressuring the Seahawks' offense.

"That line is not a lot of household names so to speak outside of Bosa, but the way they play, they play like their hair is on fire," said left tackle Trent Williams. "That’s a very special group."

Offensively, the connection between quarterback Brock Purdy and receiver Mike Evans proved vital, especially with other receivers sidelined. Evans, who joined the team in March, recorded seven catches for 113 yards and a touchdown, despite playing with broken ribs. This season, Purdy has a 149.9 passer rating when targeting Evans.

"That’s exactly why he’s here," coach Kyle Shanahan commented on Evans' performance.

The game also saw struggles in special teams, with a fumbled punt and a missed 52-yard field goal by Eddy Pineiro. Pineiro has now missed three field goals and two extra points this season, a tally that ties for the most missed kicks in the league.

Greenlaw's ejection in the second quarter, following a late hit and an interaction with a Seahawks player on the sideline, adds to a history of disciplinary issues for the linebacker. This was his third career ejection, and further league discipline is possible.

Injury concerns also affected the receiving corps, with Deebo Samuel leaving the game in the second half. The 49ers are already without Ricky Pearsall, De'Zhaun Stribling, and Demarcus Robinson. Christian Kirk is not expected back this week, while Bosa could potentially return.

This victory marked only the fifth time under Shanahan that the 49ers have won when committing three turnovers, and the second time with Purdy as the starting quarterback. The team will host Washington next Monday, aiming for their fourth 6-0 start in franchise history.