In a high-octane showdown, the Pittsburgh Steelers topped the San Francisco 49ers 63-42 in Week 4 of the 2027 season. Both teams came into the matchup looking to solidify their standings, but it was Pittsburgh that emerged victorious in a game filled with explosive plays and shifting momentum. Baker Mayfield put on a dazzling performance for the 49ers, throwing for an impressive 482 yards and five touchdowns, showcasing his ability to lead the offense through the air. Meanwhile, Jadarian Price contributed significantly for the Steelers with 85 rushing yards, balancing the attack and keeping the defense honest. Elijah Arroyo was a standout receiver for San Francisco, racking up 195 receiving yards and providing Mayfield with a reliable target downfield. Defensively, the Steelers made their mark with Nick Bosa recording two sacks, applying consistent pressure on Mayfield, which was pivotal in disrupting San Francisco's offensive rhythm. The game-changing moment came in the second half when Pittsburgh’s defense tightened up, forcing critical turnovers and stifling the 49ers' attempts to close the gap. Nick Emmanwori led the Steelers with six tackles, anchoring a defense that ultimately held off San Francisco's late-game surge.