#1 Gayle Sayers (Magic) Career ending knee injury cut His career short at 28. If You ever have time watch some NFL vidios. This Guy was a Beast.
#2 Jim Brown
#3 Sweetness (Nuff Said)
#4 OJ. Unfortunately He was My idol as a teenager, what a let down.
#5 Bo Jackson Could have been a #1 pick if He could have had 5 more Years, His career was short cause of injury as well.