In a decisive showdown in Week 3 of the 2026 season, the San Francisco 49ers topped the Arizona Cardinals with a final score of 40-21. This victory not only solidifies the 49ers' position in the division but also sends a message about their offensive firepower and defensive prowess as they look to make a statement this season. Brock Purdy was the standout performer for San Francisco, throwing for 309 yards and two touchdowns, showcasing his ability to lead the offense effectively. He connected particularly well with Mike Evans, who exploded for 154 receiving yards, proving to be a constant threat downfield. Christian McCaffrey added a solid ground game with 63 rushing yards, contributing to a balanced offensive attack that kept the Cardinals on their heels. Defensively, the 49ers were anchored by Mykel Williams, who recorded 1.5 sacks, disrupting the Arizona offense at critical moments. Fred Warner's interception further highlighted the defensive effort, turning the tide in the second quarter when San Francisco was able to capitalize on the turnover and extend their lead. The combination of timely defensive plays and a potent offensive performance ultimately sealed the victory for the 49ers.