The Cowboys were crushed on Sunday Night Football. Dallas lost to the undefeated San Francisco 49ers 42-10 at Levi's Stadium. Dak Prescott struggled under center, throwing for 153 yards, one touchdown and three picks. Dallas was held to just 57 rushing yards on 19 attempts. The Cowboys dropped to 3-and-2 on the season. They will travel to take on the Los Angeles Chargers on Monday Night Football in Week Six.