In professional American football history, there is only 1 team to have ever gone undefeated for an entire season. The Miami Dolphins. Having gone 17-0 during their spotless 1972 campaign they went on to win Super Bowl VII to top their campaign, beating the Washington Redskins (now known as the Washington Commanders!) 14-7. To support the NFL’s only team with a spotless campaign head to the N1Fan Store to grab the Dolphins’ merch to continue supporting them! #FinsUp