Is Rafael Nadal a one Slam wonder? Is he one of the many who thrives on clay but nothing else? In my opinion, he has the ability to win multiple Slams [ though I can't estimate how many ] and at different venues. His energy, flare, intensity, speed, and constantly improving shot making ability works dramatically in his favor. On the other hand, he must improve all aspects of his serve, [ pace, consistency, placement, and, only to a small degree, spin ] his endurance, which fatigues because of the high level of energy that he exerts everytime he steps on the court, his consistency off the ground, his net play, both in coming in more frequently and more effectively, and, in my view, his western-extreme western grip. With this grip, Nadal cannot drive through the ball and instead vigorously brushes up on the ball. This creates a lot of spin, consistency, and difficult to hit high-bouncing balls that plagues Federer everytime he plays him. The problem with this is Nadal will not hit many winners due to his excessive spin and the resulting lack of depth and penetration. And because of this, he must work a lot harder to win points than a Federer or a Safin. [ I admit Safin has a moderate western grip but, one, as i said, it is only moderate and, two, he's just naturally able to flatten the ball out more and easier ] Also, this having to work harder for every point will undoubtedly take a toll on Nadal's body and might result in serious injuries. Especially when it comes to grips, everything has a tradeoff. While Eastern grips handle low balls well and high balls not as well and Western grips handle high balls well and low balls not as well, Semi-Western grips are a happy medium handling both pretty well. This being the case, I think Nadal should convert to the well rounded Semi-Western grip. Speaking of well rounded things, I think the alteration that would most benefit Nadal is adopting an all court game. As Roger Federer, the best player in world right now and quite possibly, after his career has ended, of all time, demonstrates, the all court player is in the best position being so versatile and having so many options with which to implement. Nadal does need to improve but he's young and has a lot of time do so. And in my view, if or when he does, he'll be no pushover and may even emerge as a nascent power.