Nfldefense

The San Francisco 49ers have long been synonymous with a fearsome, suffocating defense—a unit capable of dismantling even the most potent offenses. At the heart of this defensive machine are two titans: All-Pro linebacker Fred Warner and elite pass-rusher Nick Bosa. Their recent absence from the field, however, has created a seismic shift, exposing vulnerabilities that have altered the team's identity and opened the door for opponents to challenge their once-invincible fortress.