In a compelling Week 3 matchup, the San Francisco 49ers topped the Arizona Cardinals with a final score of 30-20, improving their record as they aim for a strong season. The stakes were high for both teams, with the 49ers looking to establish themselves as contenders in the NFC West. Offensively, Brock Purdy led the charge for San Francisco, throwing for two touchdowns and connecting well with Mike Evans, who racked up an impressive 140 receiving yards. Christian McCaffrey also contributed significantly on the ground with 88 rushing yards, helping to maintain the balance that the 49ers' offense thrives on. Meanwhile, Jacoby Brissett put up strong numbers for the Cardinals, passing for 310 yards, but it wasn't enough to keep pace with San Francisco's explosive offense. Defensively, the 49ers made crucial plays that shifted the momentum of the game. Nick Bosa was a standout performer, notching three sacks that consistently put pressure on Brissett, disrupting Arizona's offensive rhythm. The turning point came when Renardo Green intercepted a pass in the second half, allowing San Francisco to extend their lead and ultimately secure the victory.