In a tightly contested matchup, the San Francisco 49ers secured an 18-10 victory over the Arizona Cardinals, maintaining their momentum in the early weeks of the 2026 season. This win not only boosts the 49ers' confidence but also positions them favorably in the competitive NFC West. Offensively, Saquon Barkley was the star of the show, racking up 100 rushing yards and consistently moving the chains for San Francisco. Dak Prescott of the Cardinals threw for 216 yards, showcasing his ability to connect with receivers, but it was A.J. Brown's 74 receiving yards that highlighted the 49ers' passing attack as they orchestrated key plays at crucial moments. Defensively, it was a battle to control the game, with the 49ers making a pivotal play when Devon Witherspoon intercepted Prescott, shifting the momentum in their favor. Despite Josh Hines-Allen’s impressive 2.5 sacks for Arizona, the 49ers' defense held strong, stifling the Cardinals' attempts to mount a comeback. The combination of timely turnovers and solid tackling ultimately sealed the victory for San Francisco.