Five NFL teams went into Sunday undefeated, and all five stayed that way, though most had close calls that threatened their unblemished records.
Cam Newton threw a 26-yard touchdown pass to tight end Greg Olsen with 32 seconds left as Carolina rallied for a stunning 27-23 victory at Seattle. The Panthers (5-0) took a half-game lead in the NFC South over the Falcons, who fell from the ranks of the unbeaten with their loss Thursday at New Orleans.
Andy Dalton passed for three touchdowns as visiting Cincinnati won its sixth straight, 34-21 over the Buffalo, matching the Bengals' best start to a season.
Peyton Manning shook off three interceptions to drive Denver (6-0) in range for Brandon McManus' 34-yard field goal with 4:56 left in overtime and a 23-20 victory at Cleveland.
A fourth team taking its unbeaten record on the road, Super Bowl champion New England (5-0), rallied in the second half to beat Indianapolis 34-27 in a "Deflategate" rematch of their AFC Championship Game.
Green Bay (6-0), the lone unbeaten that played at home Sunday, stopped San Diego on fourth and goal from the 3 with 15 seconds left and overcame a career day by Philip Rivers to hold off the Chargers 27-20.