Their 26–14 win over the Packers on Thanksgiving Day in week 11 denied defending champion Green Bay the NFL's first true perfect season.
[7][8] After the season, defensive coordinator Don Shula left to become the head coach for the Baltimore Colts, a position he would hold for seven years.
This game provided the backdrop for the Vince Lombardi book Run to Daylight!, chronicling a typical week in the life of a pro football team.
Alex Karras reportedly threw a helmet at Milt Plum in the locker room after the game for throwing the late interception that led to the Lions' defeat.
The game was dubbed the "Thanksgiving Day Massacre" thanks to the dominant performance of the Lions defense, who sacked Bart Starr 11 times.