One. The 1972 Miami Dolphins are the only NFL team to go undefeated in both the regular season as well as the playoffs. Four teams have had an undefeated regular season, 1924 Bears, 1942 Bears, 1972 Dolphins, 2007 Patriots. With the exception of the Dolphins, they all lost the championship game.
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∙ 13y ago1; The 1972 Miami Dolphins
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2007 Patriots 1972 Dolphins
the Colts have never gone undefeated,,,only two teams have.1972 Miami Dolphins (14-0)2007 New England Patriots (16-0)
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Two American professional football teams have had perfect seasons, these were the 1948 Cleveland Browns and the 1972 Miami Dolphins.
The Utes have had 2 undefeated seasons in their history. One in 2004, and one in 2008.
The Steelers have never had an undefeated season in their NFL history.
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Two
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the MIAMI DOLPHINS went undefeated in the year 1972