32: 16 in the AFC and 16 in the NFC. Each conference is split into four divisions (East, North, South and West) of four teams.
The San Francisco 49ers and the Buffalo Bills, all 7-1.
AFC East: Buffalo Bills (7-1). AFC North: Pittsburgh Steelers (6-2). AFC South: Jacksonville Jaguars (6-2). AFC West: Denver Broncos (7-2). NFC East: New York Giants (5-3-1). NFC North: Chicago Bears (7-2). NFC South: Carolina Panthers (3-5). NFC West: San Francisco 49ers (7-1).
The New England Patriots at the Detroit Lions, Sunday 15 Nov, 9:30 AM ET, in Week 10.
The Chicago Bears, the Denver Broncos, the Philadelphia Eagles and the Tampa Bay Buccaneers.