Bosa was spotted by KPIX-TV reporter Matt Lively in the tunnel at Levi’s Stadium on Sunday, arriving to watch the 49ers eventually lose 42-26 to the Rams in an NFC West showdown. In the quick video clip, Bosa has a brace over his right knee as he walks to the team’s locker room.

Injured San Francisco stars Fred Warner and Nick Bosa still are showing up for their 49ers teammates despite being out for the 2025 NFL season.

Without All-Pro team captains Fred Warner and Nick Bosa, the San Francisco 49ers defense was exposed Sunday as inexperienced and overmatched. "We tried to fight."

“Head coach Kyle Shanahan confirmed Monday that defensive lineman Nick Bosa suffered a torn ACL in his right knee during Sunday's win over the Arizona Cardinals. Bosa will undergo season-ending surgery,” 49ers.com’s Briana Jeannel wrote.

Ahead of their game against the Cardinals, the 49ers got a bunch of great health news, though they did add one player to the injury report.

The San Francisco 49ers face the Arizona Cardinals in Week 11 of the NFL season on Sunday at State Farm Stadium.

When it comes to winning football, the quarterback is always the first place to begin the discussion. But if you genuinely look at the teams that make deep playoff runs, there is another story to tell: an elite pass rush. Pressure on the quarterback breaks ...

The San Francisco 49ers are starting to get healthier on offense with Ricky Pearsall preparing to return, but when he does, who will lose reps?

The Niners are missing Nick Bosa, Fred Warner, Brandon Aiyuk, and seemingly countless others. The Cardinals will suit up without Marvin Harrison Jr. and Will Johnson. It sets this game up to be gritty and emotional, but both teams still have plenty of good players and Pro Bowl talents.