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San Francisco Rebuilt Its Defensive Line Around One Trade and Two Returns
San Francisco’s offseason on defense was quieter than the offense’s and probably matters more.
Bryce Huff retired. Spencer Burford departed. Retirement is the hardest subtraction to plan for — no compensatory pick, no trade return, and the snaps still have to come from somewhere.
The trade
San Francisco acquired Osa Odighizuwa from Dallas for a 2026 third-round pick.
Interior pressure is the least glamorous and most valuable commodity on a defensive line, because it is the one thing that cannot be schemed around. A quarterback can step up against edge pressure. He cannot step anywhere against pressure up the middle. Paying a third for a proven interior rusher is the kind of move that makes no headlines in March and shows up on the field in November.
The return from injury
Nick Bosa is back from an ACL tear. Everything about this defense is easier when he plays and harder when he does not — arithmetic more than analysis.
The honest caveat: a first season back from an ACL is rarely a player’s best. Expecting the pre-injury version immediately is how a perfectly good year ends up reading as a disappointment.
The return from elsewhere
Dre Greenlaw is back, and he plays next to Fred Warner, one of the two or three best linebackers in football for several years running.
That pairing was a defining feature of San Francisco’s defense in its best recent seasons, and reassembling it cost no draft capital. Add third-round edge rusher Romello Height out of Texas Tech and the plan is legible: replace a retired pass rusher cheaply, get two significant players back for nothing, draft depth behind them.
It all turns on health
An unsatisfying conclusion, and the true one. This is a defense whose ceiling is defined by Bosa, Warner and Greenlaw being available, and whose floor is defined by what happens when they are not.
San Francisco’s last two seasons were decided more by who was on the field in January than by anything schematic.
The schedule offers an early read
The 49ers open against the Rams and play Seattle twice inside the first twelve weeks, with a Week 8 bye at a useful midpoint. The NFC West does not hand out easy months.
One further note for a defense counting on availability: this team plays five primetime games and two international ones. That is an unusual amount of disrupted preparation for a roster whose margin is health.
Injuries, snap counts and tonight’s game: 49ers news · 49ers tonight