Originally Posted by fps
Haas is a miraculous player. How he can still bring it at the level he does when he's fit I have no idea.
I agree but keep in mind even though he is three years younger than Fed, he has played nearly 300 less matches in his career. No one seeks to be injured but it has given Haas less "wear on the tires".
"When a man is tired of London, he is tired of life"...Samuel Johnson 1777
"When a man is tired of Federer, he is tired of tennis"...stringertom 2014