The Cardinals Beat the Chargers, the Spread, and Maybe the Script on Their Season

There was no more lopsided line in Week 1 than the one at SoFi Stadium. The Chargers closed as 8.5-point favorites over Arizona, with the moneyline at Los Angeles -500 against Arizona +385 — an implied win probability of roughly 83 percent for the home team. The Cardinals were a formality. A 3-14 team from a year ago, breaking in a first-year head coach, traveling to face a club that had won 11 games in each of the past two seasons.

Then Mike LaFleur's team went out and won 26-14.

What Actually Happened

Jacoby Brissett, confirmed as the starter by the team's captain list, was the steadying force Arizona needed: 27-of-37 for 277 yards, one touchdown, no interceptions, and a 103.1 passer rating. He added 14 yards on six carries and took just one sack.

The engine, as expected, was Trey McBride. Arizona's tight end caught 9 of 13 targets for 95 yards and a fourth-quarter touchdown — the score that effectively put the game away. Tyler Allgeier carried 17 times for 61 yards, giving the Cardinals just enough on the ground to keep the Chargers honest despite a 116-yard team rushing total.

Defensively, Arizona generated three sacks and finished plus-2 in turnover differential, holding Los Angeles to 14 points. Through one week, that 14.0 points allowed per game ranks ninth in the league.

The Uncomfortable Part

The win didn't come with a clean bill of health on offense. Marvin Harrison Jr. caught one pass for 33 yards on three targets. That's the same quiet-afternoon pattern that defined his 2025 — 2.4 catches and 35.8 yards per game — and it remains the biggest unresolved question on this roster.

Arizona also won while gaining 103 fewer yards than its opponent. Turnover margin and red-zone efficiency covered for a yardage deficit that won't always be so forgiving.

Why Week 2 Is the Real Test

The Seahawks come to State Farm Stadium on Sunday, and the market has already adjusted. Seattle opened as 6.5-point road favorites; that number has since moved to 4.5, with the total dropping from 43.5 to 41.5. Two points of movement toward Arizona in a week is the clearest sign yet that the Chargers result changed how this team is being priced.

Seattle arrives 1-0 after a 13-10 win, and its own picture is muddier than Arizona's. Sam Darnold has appeared on the injury report with oblique, foot, and shoulder designations after leaving the Patriots game, and Cooper Kupp's status has been a running question. Both were listed as limited at points during the week. If Seattle is without its starting quarterback or a top receiver, the Cardinals' path gets considerably shorter.

For Arizona, the injury list is longer than the win suggests. James Conner has been a fixture on the report with ankle, heel, knee, and rib designations across multiple weeks, and Brissett has been limited with hamstring and thumb issues. Those are worth watching, but the Week 1 inactives — Isaiah Adams, Andrew Billings, Dadrion Taylor-Demerson, Reggie Virgil, Garrett Williams — suggest the depth has held so far.

What It Means

One game doesn't rewrite a season. But the NFC West standings show Arizona, San Francisco, and Seattle all at 1-0, and a Cardinals team that was supposed to be the division's doormat just beat a playoff-caliber opponent on the road without its best receiver contributing.

The schedule gets no easier — Arizona is widely regarded as having the toughest slate in the league in 2026. But the Week 1 result bought LaFleur's staff something valuable: the benefit of the doubt, and a home opener that suddenly looks like a coin flip rather than a formality.