In a decisive Week 18 matchup, the San Francisco 49ers topped the Arizona Cardinals 41-21, solidifying their playoff position as the regular season comes to a close. With both teams vying for momentum heading into the postseason, the 49ers showcased their dominance on both sides of the ball. Offensively, San Francisco was led by Brock Purdy, who threw for three touchdowns, while Kaelon Black added a strong ground game with 105 rushing yards. Mike Evans was a standout in the receiving game, racking up an impressive 172 yards, proving to be a reliable target for Purdy throughout the contest. The 49ers' offense was relentless, demonstrating a balanced attack that kept the Cardinals' defense on their heels. On the defensive side, the 49ers made crucial plays that turned the tide of the game. Nick Bosa recorded 1.5 sacks, putting constant pressure on Arizona's quarterback Carson Beck, who did throw for 333 yards but struggled to find the end zone. A pivotal moment came when Dre Greenlaw intercepted Beck, halting a promising drive and allowing the 49ers to extend their lead. The combination of timely defensive plays and a potent offensive performance secured a convincing victory for San Francisco.