The San Francisco 49ers are 4-0 and still one of the NFL’s few undefeated teams, but the next month looks a lot less forgiving than the one they just survived. After four weeks that included significant challenges and untimely injuries, San Francisco now enters a stretch that will tell a lot more about the defense than the opening month did.
That matters because the early returns on Raheem Morris’ unit have been strong. The 49ers are third in points allowed and seventh in yards, a clear step forward from last season’s comparison point under Robert Saleh. They have done it while missing Nick Bosa very early in the season, and while Alfred Collins is one of the few players they have already lost for the year. Even with those absences, the defense has helped keep the team rolling.
The schedule is about to ask for more.
Week 5 brings a road trip to Seattle, and the Seahawks are the first opponent in a run that also includes Washington and Atlanta before the Week 8 bye. After that, San Francisco comes back to face the Las Vegas Raiders, who are 3-1. The next month is where the 49ers either keep what they’ve built or give it back.
That makes the timing awkward in the best possible way. The 49ers have already shown they can win ball games while dealing with injuries and setbacks. They beat the Broncos in Week 4, extended their winning streak to four games, and have not allowed a sack this season. But the question now is whether that early stability holds up once the opponents get tougher and the margin for error gets thinner.
There is also a roster-building layer to this stretch. The 49ers have the cap space to take on Khalil Mack’s $18 million contract, and the trade-deadline conversation sits in the background as the schedule gets harder. If the defense keeps performing at this level, it strengthens the case that San Francisco can push forward with what it has. If the pressure numbers and injury losses start to show, it could sharpen the argument for outside help.
That is the tension inside the next four games: not just whether the 49ers can stay unbeaten, but whether the defense’s early improvement is sturdy enough to carry into the part of the season that will demand more from it.