The Chargers do not need to guess who the Seahawks will lean on Sunday. They already know.

Jaxon Smith-Njigba has turned the first three weeks of the season into a run through the record book, and Los Angeles is walking into Week 4 with a defensive assignment built around trying to slow him down. The question is no longer whether he is producing. It is whether the Chargers can keep him from adding another line to a historic start.

Smith-Njigba’s latest statement came against Washington, where he piled up 122 receiving yards and two touchdowns. That performance pushed him into rare company: he and Jerry Rice are the only players in NFL history to post 120 yards and a touchdown in each of their team’s first three games. He also became the fourth player in the Super Bowl era to score six touchdowns in the first three games of a season.

The numbers have been piling up fast. Through three games, Smith-Njigba has 27 receptions, 405 yards and six touchdowns. Another way to frame it: he has already cleared 25 catches and 400 yards before the calendar has even reached October.

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That is why the Chargers’ Week 4 game plan is centered on him. Any path to a win, according to the available reporting, runs through finding a way to limit Smith-Njigba’s impact. He is being described as the greatest offensive threat the Chargers have seen this season, and the matchup is being framed around whether Los Angeles can interrupt a player whose pace is already being measured against some of the biggest names in league history.

There is another milestone sitting right in front of him. If Smith-Njigba reaches another 100-yard game in Week 4, he would join Randy Moss as one of only two players to open a season with four straight games of 100 yards and a touchdown.

That is the kind of threshold that changes the tone of a game before kickoff. It also gives the Chargers a very specific problem to solve.

Their defense has already shown both the danger and the possibility of improvement. In Weeks 1 and 2, the Chargers were diced apart by Jacoby Brissett and Kirk Cousins, with blown coverages leading to multiple deep shots. Then came a Week 3 loss to the Bills, but also a defensive performance that suggested some momentum might be building.

Now comes a different kind of test. Smith-Njigba is not just another receiver to account for; he is the focal point of Seattle’s passing game and the player most likely to tilt the matchup. Seattle’s rushing attack has struggled, ranking in the bottom 10 of the NFL, which only sharpens the focus on the receiver who has become the offense’s clear standout.

That leaves the Chargers with a narrow margin for error. Even one or two explosive plays, according to the reporting around the matchup, could be enough to put the game out of reach for Los Angeles’ offense. The challenge is not simply to avoid a big day. It is to keep Smith-Njigba from turning another efficient afternoon into another historical marker.

Sam Darnold’s recent line only adds to the burden. He completed 31 of 45 passes for 379 yards and four touchdowns, a reminder that Seattle can stack production in more than one way if the passing game gets rolling.

So the Chargers enter Week 4 with a clear assignment and a difficult one. Smith-Njigba has already joined Jerry Rice in one statistical category and moved into rare Super Bowl-era territory in another. If Los Angeles cannot slow him now, the next stop may be another piece of NFL history.