Kyle Shanahan shares why the 49ers’ defense was lucky they weren’t ‘exposed’ even more than they were in 2025

Kyle Shanahan at the Fanatics Flag Football Classic Press Conference & Practice held at BMO Stadium on March 20, 2026 in Los Angeles, California. (Photo by JC Olivera/Variety via Getty Images) | Variety via Getty Images Injuries to Nick Bosa and Fred Warner gutted a star-driven San Francisco 49ers defense in 2025. They’ve been the driving force in what’s been one of the best defenses in the league dating back to 2019. Losing Mykel Williams for the season didn’t help. Neither did fielding multi