The Invincible '72 Miami Dolphins.
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Perfect season - Wikipedia
Five Reasons the 1972 Miami Dolphins Will Forever Be the Only Undefeated NFL Team
NFL: The Miami Dolphins team of 'misfits' who won the Super Bowl undefeated - BBC Sport
Cowboys' rough week concludes with mistake-filled loss to Cardinals - The San Diego Union-Tribune
Perfection: The Inside Story of the 1972 Miami Dolphins' Perfect Season: Griese, Bob, Hyde, Dave: 9781118218099: : Books
Bills focusing on fundamentals ahead of matchup with 'explosive' Dolphins
USA TODAY - Breaking News and Latest News Today Dolphins football, Nfl miami dolphins, Miami dolphins football
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Perfect Memories: A '72 Dolphins 50th anniversary celebration