The Green Bay Packers are credited not only with being the first team to record a world championship in the Super Bowl era, but also with being the first team to repeat the achievement. More than 50 years later, the Eagles will be attempting to replicate that feat, one that has grown increasingly rare over the decades. To beat all the other teams in the NFL, the Eagles will also have to beat some heavy odds.
When the Packers' repeat closed out the 1967 season with a win over the Oakland Raiders, that wasn't even considered their most memorable accomplishment.