Anytime we talk sports greats we must take into consideration.....DOMINANCE OF ERA.
There are HS kids today who could have won every Olympic 100m up to 1984. I have no doubts todays Alabama football team would crush Lombardi's Packer teams. Way too big and too fast.
It's never about how those old timers would fare today, that means...0.
You cannot talk the great NFL players without Red Grange, Jim Thorpe, Emlen Tunnell, Sammy Baugh, Don Hutson, Otto Graham, Tom Fears, "Crazy Legs" Hirsh, Joe Perry, Jim Brown, if ya think ya can ya don't know the game.