NFL week 2 started with 16 undefeated teams.
It's now down to seven.
Buffalo, the New York Jets, Washington, Green Bay and the Lions stand 2-0 after the early games - the first three handing their opponents their first loss.
The Patriots and Texans won in the late afternoon.
Next week, New England visits Buffalo in the only meeting between 2-0 teams.
The number of undefeated teams dwindle, and the 1972 Miami Dolphins are watching.