Today's NFL athletes are bigger, faster and more specialized than they were in the league's earliest days. See how professional football players have evolved from "everyman" to "superman."
The Kansas City Chiefs' Evolution Is More Impressive Than a Single
Tight end position has undergone quite an evolution in NFL
Green Bay Packers NFL Football Operations
Forward Pass NFL Football Operations
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GIFS: Evolution of the NFL jersey
Scoring Plays NFL Football Operations
NFL Coaching Timeline NFL Football Operations
Evolution of the NFL Player
Evolution of NFL Ages
Rule Changes That Changed Everything
The Reintegration of the NFL
The Evolution of Personnel Groupings and Usage: What is
Down by Contact NFL Football Operations