Sure he has the mph, but he doesn't have the placement, spin or disguise. Like the rest of his game, its all about brute power. I'm talking relative to servers like Sampras, Goran, maybe Mark etc who had the ability to conjure up aces at will (esp Sampras) which Roddick does not have. Granted Fed has a great return and that played a factor, but it can be gotten back. It was also obvious from today that as a 5 set match goes on , the speed on his serve will drop thereby reducing its effectiveness considerably.