[In the modern game], you're either a clay court specialist, a grass court specialist or a hard court specialist ... or you're Roger Federer.

Roger is at the top, and he's the only person at the top, regardless of how much people want to make rivalry comparisons and this, that and the other. He's the…

He hasn't changed a bit. He hasn't been arrogant in the locker room. He never is. That's great to see someone that does it with class. He doesn't intentionally…

He's probably the most talented person to ever carry a racquet around-the shots that he can come up with, the way he's kind of become a totally complete player…