I just think you have a very low standard of what is considered greatest athletes in the world. So I guess you would take the top 10 players from every position in every sports league in the world, and say those are the greatest in the world, regardless of accomplishments or athletic abilities. At least from the sound of what you posted above. It is a very definition dependent, and how high your standards you set to apply, "Greatest Athletes in the World." To me, it would be a time consuming activity that requires a lot of research, where not many people qualify. Cowboys wise, through history, Bob Hayes might have been someone who was one the greatest athletes in the world. But then you might have legendary quarterbacks failing to be a greatest athlete in the world. But I guess you do you.