How does Federer manage to do brilliant tactics like saving his bad grass matches for rubbish opponents?

Question

it's a brilliant skill and id love to know his secret

Answer 1

He underestimates his opponents. Which reveals who he truly is. He's cocky and full of himself. I remember he said that he don't need a game plan against anyone because he has the best game. That's why he fired his coach. All the years of arrogance is finally catching up to him. It's time to pay back the devil LOL

Edit: You have no place to talk about childish when you are dissing his opponent by calling them rubbish. The truth hurts, baby. Deal with it!