 In the coldest game of the season, the Bears recorded their second straight shutout against Atlanta, with defensive lineman Henry Waechter sacking Bob Holly in the endzone for a safety.The Bears’ hopes for a perfect season were thwarted when Dan Marino and the Dolphins defeated the McMahon-less Bears on Monday Night Football, 38–24, and kept the '72 Dolphins the only undefeated regular season in league history (it wouldn't be until 2007 when the 2007 New England Patriots were able to tie this record).Miami struck first when Marino hit Nat Moore for a 33-yard touchdown.