How has the NFL's final undefeated team finished each season?
The Top Rivalries for Each NFL Franchise
Winless Pro Football Teams - Dawgs By Nature
Steelers undefeated: Here's a look at the other 12 teams that
Top 5 Miami Dolphins Quarterbacks of All Time - Sports Illustrated
The last undefeated NFL teams of the past 30 years
Dolphins Celebrate Their 1972 Season by Winning First Game - The
Miami Dolphins one of seven teams currently undefeated in the NFL
Can Philadelphia Eagles remain undefeated, and who might beat them?
50 years on, the 1972 Miami Dolphins' undefeated season remains
1972 Miami Dolphins season - Wikipedia
Perfect season - Wikipedia
Top 5 Miami Dolphins Quarterbacks of All Time - Sports Illustrated
1972 Dolphins remain only perfect team in NFL's 100 years: Here's
The Top 5 Offensive Performances in NFL History: Where Does Miami