Chicago Bears Giants, wearing sneakers defeated the Bears 30–13 on a cold, icy day at the Polo Grounds. From 1940–1947, quarterback Sid Luckman led the Bears to victories in four out of the five NFL Championship Games in which they appeared. The team acquired the University of Chicago's discarded nickname "Monsters of the Midway" and their now-famous helmet wishbone "C", as well as a newly penned theme song that declared them "The Pride and Joy of Illinois". One famous victory during that period was their 73–0 victory over the favored Washington Redskins at Griffith Stadium in the 1940 NFL Championship Game; the
1967 NFL Championship Game employed in their sweep. Although the Packers and the Chicago Bears were arch-rivals, Lombardi's most passionate game planning was in preparing for Landry's "Flex". Saturday, on the eve of the game, NFL commissioner Pete Rozelle called Jim Kensil and Don Weiss, the executive directors of the NFL, for an update on the weather conditions. It is suspected that they informed him that Sunday's game time temperature of about 5° was playable. Rozelle, who in June 1966 had seen to it that the AFL-NFL Championship game would always be in a warm weather city, inquired if the game could be postponed