There's probably not a department in his game that couldn't be considered the best in that department. You watch him play Hewitt and everybody marvels at Hewitt's speed, as well as myself. And you start to realize, `Is it possible Federer even moves better?' Then you watch him play Andy [Roddick], and you go, `Andy has a big forehand. Is it possible Federer's forehand is the best in the game?' You watch him at the net, you watch him serve-volley somebody that doesn't return so well and you put him up there with the best in every department. You see him play from the ground against those that play from the ground for a living, and argue he does it better than anybody.