The 49ers walked out of Seattle at 5-0 with a win that said as much about their defense as it did about the final score.
San Francisco’s 32-29 thriller over the Seahawks was the kind of game where the box score only tells part of the story. The Niners gave up points, sure, but they also forced four turnovers, got to Sam Darnold five times, piled up eight QB hits and limited Seattle to 3.4 yards per carry.
The Seahawks reached San Francisco territory seven times and came away with field goals on five of those drives. On offense, Seattle managed just a 30 percent success rate, and a big reason was the pressure the 49ers kept generating.
Per Sumer Sports, San Francisco produced a 51.4% pressure rate, with seven different players logging at least two pressures. Darnold was taken down by five different defenders: Jaden Dugger, Keion White, Gracen Halton, Sebastian Valdez and Osa Odighizuwa.
That list says plenty about where this defense is right now. White and Odighizuwa are established names, but the other three are still writing their stories.
Valdez spent his rookie year and the start of this season on the practice squad before carving out a place on the 53-man roster. Dugger and Halton are both part of a 2026 rookie class that is starting to look like a serious part of the future.
Halton delivered one of the game’s biggest swings just before halftime, forcing and recovering a George Holani fumble in the final seconds of the second quarter and taking it in for a touchdown that pushed San Francisco ahead 21-13.
Dugger’s day got even busier after Dre Greenlaw’s second-quarter ejection. He started at strong side linebacker on base downs, then had to stay on the field for all three downs at weakside linebacker. He answered with a sack, nine tackles, a tackle for loss and a quarterback hit.
The back seven also kept making plays. Renardo Green, the third-year corner, turned in the kind of game that makes a hot start feel even louder, grabbing two interceptions and continuing his rise in the secondary.
Fred Warner remained the veteran anchor in the middle, and the return of last year’s first-round pick Mykel Williams at defensive end gave the group another boost. Together, they helped San Francisco control the line of scrimmage against both the run and the pass. That mattered even more with Nick Bosa still sidelined.
Kyle Shanahan made it clear after the game that he understood how much the defense had to absorb and how well it handled the load.
“From what I saw watching, it looked like they stepped it up a number of times. Just the guys you mentioned, I saw them make a number of plays today.
If that doesn’t happen, especially when you lose a guy like Dre, and Dugger starting at base, but having to play that much at nickel with Dre going out. Gracen with losing some of the D-linemen we’ve had.
Mykel with his first game back. It’s really hard to win a game in that situation if those guys don’t step it up, and they’ve been stepping up huge.”
The players themselves didn’t sound especially shocked by any of it.
“When you’re out there it’s your time to play,” Green said when asked about the contributions from the young players.
“When you’re out there - I don’t care who’s out there - you’re the guy. So 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. We were doing it in camp, and we were doing it in preseason. No matter who’s out there, we’re all held accountable and to the same standard.”
White said the confidence inside that group is obvious.
“We got the utmost confidence. (Defense) has been going crazy,” White said.
“Seabass [Sebastian Valdez], he’s been really stepping up big, making the most of his moment. Yeah, Dugg [Dugger] is a great player in this league.
Shout out to John [Lynch] for drafting the really good young guys. And shout out to them for stepping up.”
Trent Williams saw the same thing from the other side of the ball. He called the group “a sneaky good defense” and pointed to the way the young players run to the football and keep competing. He said: “To keep holding that offense to three [points], that’s what gave us a chance to win.”
Williams also singled out rookie edge rusher Romello Height, noting how close he is to making a real impact each week. And while he said, “I can’t say that I saw it coming,” he was clear about the energy coming off that line.
“That line is not a lot of household names so to speak outside of Bosa,” Williams said, “but the way they play, they play like their hair is on fire. That’s a very special group.”
After what San Francisco did in Seattle, more teams around the league may be ready to agree. And with Bosa seemingly on track to return in Week 6, the defense that already looked dangerous just got even more intimidating.
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