49ers Star Nick Bosa Out for Season with Torn ACL
San Francisco 49ers' star defensive end Nick Bosa will miss the remainder of the 2025 season after suffering a torn ACL during a game, a significant blow to the team's defense.
Subscribe to unlock this story
We really don't like cutting you off, but you've reached your monthly limit. At just $5/month, subscriptions are how we keep this project going. Start your free 7-day trial today!
Get StartedHave an account? Sign in
Overview
- San Francisco 49ers' star defensive end Nick Bosa sustained a torn ACL during a recent game, an injury that will unfortunately sideline him for the entire remainder of the 2025 season.
- This significant injury represents a major setback for the 49ers' defense, as Bosa is a crucial player known for his impactful presence on the field.
- Before his season-ending injury, Bosa was performing exceptionally well, having already recorded two sacks, four tackles for loss, two tackles, and a forced fumble in just three games.
- Bosa has a distinguished career, making the Pro Bowl in all five of his healthy seasons and being named the NFL's Defensive Player of the Year in 2022 with 18.5 sacks.
- The injury occurred during a game against the Arizona Cardinals, forcing the 49ers to adjust their defensive strategy for the rest of the season without their star player.
Report issue

Read both sides in 5 minutes each day
Analysis
Center-leaning sources cover this story neutrally, prioritizing factual reporting of Nick Bosa's season-ending ACL tear. They detail his past injuries and career achievements, outlining the impact on the 49ers' defense without loaded language or subjective interpretations. The coverage presents information directly and objectively, focusing on verifiable details and team implications.
Articles (3)
Center (1)
FAQ
Nick Bosa suffered a torn ACL in his left knee, the same knee he injured previously in 2020. The tear is clean with no other ligaments damaged, but it will sideline him for the entire 2025 season requiring surgery and a lengthy rehabilitation.
Before his injury in Week 3, Nick Bosa recorded two sacks, four tackles for loss, two tackles, and a forced fumble, and he was performing at a high level with a PFF overall grade of 86.3 and pass rush grade of 80.3.
Bosa’s season-ending injury is a significant setback for the 49ers' defense, which will have to adjust its strategy without its star pass rusher for the rest of the season, potentially weakening their defensive strength.
Nick Bosa previously tore his ACL in the same knee in 2020 but recovered fully, missing only four games over the following four seasons, indicating a strong recovery history that could bode well for his rehabilitation this time.
Initial sideline tests suggested the ACL might not be torn, but an MRI later confirmed a clean ACL tear, emphasizing that accurate diagnosis requires imaging beyond physical assessments during the game.
History
- This story does not have any previous versions.

