If anyone it would be Kilian Jornet. When you hear footballers complaining of fatigue and this guy is racing and winning 100 plus mile races over some of the highest mountain ranges with only a few weeks in between. An incredible athlete and comes across as a very humble person shunning the limelight and living a remote existence in Norway.
Incredible to think he ran up Everest without oxygen. Highlights to us all the potential we all have.