Thirty years ago this summer Miami running backs Larry Csonka and Jim Kiick posed for a classic Sports Illustrated cover. Little did they know they were about to embark upon the only unblemished season in NFL history, a perfect 17-0 run to the Super Bowl. In the July 15 special double issue of SI -- on newsstands now -- the magazine revisits that Dolphins team and several other sports figures who had seemingly vanished from the spotlight. Relive the 1972 season through the SI flashbacks and photos and vote for your favorite all-time team.

Backfield mates Csonka (left) and Kiick team up to recreate their star turn on SI's cover.