The San Francisco 49ers are 3-0 so far this season. While being undefeated is great, doing so has cost the team some of its biggest names early in the year. Brock Purdy and George Kittle suffered injuries that have kept them out since Week 1. However, they are on their way back to the lineup. Unfortunately for star defensive end Nick Bosa, his 2025-26 season is over thanks to a torn ACL .

Bosa was the face of a much-improved defense in San Francisco. The 49ers brought back defensive coordinator Robert Saleh to help their defense return to its former glory. Through three weeks, he has done his job very well. San Francisco has allowed the third-fewest points per game in the NFL at 16.3 points per contest . However, that number is in jeopardy after Bosa's injury.

Heading into the

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