The Bengals had another frustrating week, losing 27-3 to the Titans. Despite having a 21 point lead, the Broncos came back to beat the Bears 31-28. The Bills handed the Dolphins their first loss of the season with a 48-20 win at home. Mac Jones was benched for backup QB Bailey Zappee in the Patriots loss to the Cowboys. And after Week 4 only two undefeated teams remain, the Eagles and 49ers.