Kyle Shanahan on Nick Bosa's injury: I know he's bummed, but he'll be back
PUBLISHED Sep 26, 2026, 12:40 AM ET
Read, Watch or Listen
San Francisco 49ers head coach Kyle Shanahan confirmed that defensive end Nick Bosa will be sidelined for multiple weeks due to a calf strain sustained during individual warmups prior to a team walkthrough. Bosa did not participate in practice throughout the week and was officially ruled out for the upcoming matchup against the Arizona Cardinals. Speaking to reporters, Shanahan addressed Bosa's physical status and recovery outlook, stating that the player is disappointed but will return. The franchise's coaching and front office personnel are evaluating whether to place Bosa on injured reserve, noting current roster limitations regarding designated-to-return designations. Shanahan indicated that six of the ten defensive linemen who initially made the active roster have experienced injuries over a two-week period. Bosa previously missed the majority of the 2025 season following a torn ACL sustained in Week 3, returning to active play for the first 70 snaps of the current campaign.
By Neha R. | JQJO News
Timeline of Events
- 2025 — Nick Bosa suffered a torn ACL during Week 3 of the 2025 NFL season.
- September 24, 2026 — Nick Bosa sustained a calf injury during individual warmups before a team walkthrough.
- September 25, 2026 — Kyle Shanahan spoke to reporters confirming Bosa's multi-week absence and discussed potential injured reserve considerations.
- September 27, 2026 — San Francisco 49ers scheduled game against the Arizona Cardinals, which Bosa will miss.
News Intelligence
- Immediate US impact: San Francisco 49ers defensive capabilities are significantly reduced for upcoming games without star defensive end Nick Bosa.
- Possible long-term US impact: Potential lingering roster and depth concerns for the 49ers defensive line across the remainder of the 2026 NFL season.
- Most affected groups: San Francisco 49ers coaching staff, defensive roster, and NFL fans following the NFC West division race.
- Reader priority: High for NFL followers and fantasy football managers monitoring player availability.
Coverage of Story:
From Left
49ers' Nick Bosa sidelined with calf injury as defensive line woes mount
San Francisco Chronicle NBC Bay Area CNN Washington Post New York Times Los Angeles TimesFrom Center
Kyle Shanahan on Nick Bosa's injury: I know he's bummed, but he'll be back
NBC Sports ESPN NFL.com The Athletic CBS Sports Bleacher Report Yahoo Sports Pro Football Talk Associated Press Reuters USA Today The Mercury News Sacramento Bee Sports Illustrated Sporting News The Ringer Pro Football Focus USA Today Sports Weekly Chicago Tribune Boston Globe Miami HeraldFrom Right
49ers lose Nick Bosa to calf injury for multiple weeks
Fox Sports Fox News Wall Street Journal
Comments