In a thrilling Week 4 showdown, the San Francisco 49ers held off the Arizona Cardinals with a final score of 29-21. This victory keeps the 49ers firmly in the playoff hunt as they look to solidify their position in a competitive NFC West. The Cardinals, on the other hand, face critical questions moving forward as they seek to bounce back from this narrow defeat. Brock Purdy was the standout performer for San Francisco, throwing for an impressive 403 yards and four touchdowns, showcasing his ability to find open receivers and stretch the field. Omari Evans also had a breakout game, racking up 148 receiving yards, proving to be a reliable target for Purdy. Christian McCaffrey contributed on the ground with 78 rushing yards, adding balance to the 49ers' offensive attack. Defensively, Fred Warner made a pivotal impact with an interception, helping to stifle any momentum the Cardinals tried to build. The turning point came in the third quarter when Purdy connected with Evans for a crucial touchdown, extending the lead and putting pressure on Arizona to respond. Despite a strong defensive effort from Chris Peal of the Cardinals, who recorded five total tackles, San Francisco's offense proved too potent on this day.