Count Arizona Cardinals doubters as a dwindling breed.
The NFL's last unbeaten team stayed so in emphatic fashion Sunday with a 37-14 thrashing of a vaunted Cleveland Browns team. They improved to 6-0 with the win to remain the NFL's only perfect team after claiming the mantle in Week 4.
They did it on both sides of the ball against a Browns team that's pegged as an AFC contender. Once again, quarterback Kyler Murray took center stage on a four-touchdown day.
The Cardinals opened the game with a 20-0 second-quarter lead.