72 Dolphins' status as only perfect team may end in Valley
Richard Rothschild: Looking back on 1972, the greatest collection
Celebrating 50-Year Anniversary, Perfect Season Miami Dolphins Get
When Browns came just short of ending Miami Dolphins' undefeated
Don Shula, NFL's winningest coach, took Dolphins to unbeaten season.
Commanders end Eagles' unbeaten run to start season
Don Shula, winningest coach in NFL history, dies at 90 - The
Dolphins made history (and memories) in 1972 with a perfect season
1972 Miami Dolphins' 50-year anniversary: Five interesting facts