The 72' Miami Dolphins went undefeated in a 14 game regular season and then went on to win the Superbowl. The 85' Chicago Bears were in line for an undefeated season and suffered their only loss to.... the Miami Dolphins! The 2007 New England Patriots went undefeated during the regular season, the only team to do so with a 16 game schedule, and would eventually lose to the New York Giants in the Superbowl.
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