Only one undefeated team remains: the 5-0 Minnesota Vikings. Nine teams, however, have just one loss, with six at 4-1 and three at 3-1.
With every team at least 25 percent of the way through its schedule, we are checking the #PulseOfTheNation:
The Vikings have reached rarefied air, despite Teddy Bridgewater's preseason injury and Adrian Peterson's being out the past three weeks. The New England Patriots (4-1) struggled in a home loss to the Buffalo Bills last week but welcomed Tom Brady back in a road win at the Cleveland Browns. The defending champion Denver Broncos (4-1) have navigated the post-Peyton Manning era well, but they suffered a setback (with quarterback Trevor Siemian out) against the 4-1 Atlanta Falcons.