The Los Angeles Chargers are adjusting to a new offensive approach. Their strategy includes increased pre-snap motion, unbalanced formations, and varied plays. Unveiling this scheme on Sunday resulted in a 26-14 loss to the Arizona Cardinals. This defeat marks Jim Harbaugh’s first Week 1 loss as an NFL head coach.

Arizona impressed with powerful plays, including a blocked punt where the team capitalized from three yards out, quickly silencing the SoFi Stadium crowd.

Sloppy at times, too sloppy, Harbaugh remarked. That’s something we need to fix.

Tight end Charlie Kolar expressed frustration more directly. “Overall, offensively, was just a dog… performance.”

The Cardinals, winners of only three games in 2025, enjoyed their first victory since Week 9 of the previous season. They controlled the clock, holding possession over 15 minutes longer than the Chargers.

Chargers safety Derwin James Jr. noted their offensive frustrations. Our offense is over there drinking water. They’re eager to get out there, bro. We need to get those three-and-outs and get off the field.

This debut did not go as planned for new offensive coordinator Mike McDaniel. His offseason efforts aimed to protect quarterback Justin Herbert by getting the ball out quickly. Although Herbert took fewer hits, he struggled to find open receivers. Completing 17 of 27 passes for 209 yards, he threw a touchdown and an interception and was sacked three times.

One significant sack took place during a critical second-quarter play. The Chargers, facing fourth-and-goal from the three, elected to proceed. Arizona’s Dante Stills broke through the line, tackling Herbert for a 13-yard loss. This misfortune led to a lengthy Cardinals possession ending in a field goal.

Neither team punted in the first half, but the Chargers managed only seven points. This shortfall stemmed from the failed fourth-and-goal and a fumble by Omarion Hampton.

Injuries also limited Chargers options. Ladd McConkey, a consistent target, left with a chest injury. KeAndre Lambert-Smith followed with a hamstring issue, further limiting receivers.

Jim Harbaugh’s previous record of winning each of his six Week 1 games, mostly with the San Francisco 49ers, came to an end Sunday. The Chargers cautiously approached preseason, mindful of upcoming regular season matchups with Houston, San Francisco, and the Rams.

Despite winning practices, Herbert remained resolved. We need to execute, he reflected. We’ve performed these plays all camp. We know them. We need to perform to our capability.

The Chargers faced a prime opportunity with local focus on them, as the Rams suffered a blowout loss. News of Rams’ defensive end Myles Garrett’s knee injury further shifted attention.

Nonetheless, the Chargers failed to capitalize. Backup quarterback Jacoby Brissett performed well against the Chargers’ defense led by coordinator Chris O’Leary. Arizona’s rookie running back Jeremiyah Love and tight end Trey McBride exposed defensive gaps, with McBride amassing 95 yards. Brissett’s conservative play sealed the win with three final kneeldowns.

In scoring, Arizona exceeded last season’s performance in all but three games.

Running back Omarion Hampton made a notable nine-yard touchdown run but otherwise saw limited success. He finished with 12 carries for 43 yards. Cardinals kicker Chad Ryland hit four field goals, narrowly missing a fifth off the upright.

Now, Harbaugh faces the challenge of rallying his team after an opening week stumble.

We need to bounce back, he asserted. It’s about resolve.