Nole did in the Olympics.
Nadal also admitted to crying for an hour following Wimbledon '07.
Clown post, really.
Yes, much of it can be attributed to luck. I follow many different sports. There are many athletes with horrible movement who never sustain injuries throughout their careers,
Name one of them (the sports) that requires movement comparable to tennis, and more so, on surfaces comparable to those in tennis.
Few sports require such explosive yet restrained footwork. The constant, hard change of directions and quick, small steps interchanged with great strides is quite unique to the sport. Not to mention that this is primarily done on hard surfaces. And as if that weren't enough, few sports require continuous play like tennis does, let alone all from an individual player.
Common sense and a basic understanding of the human body yields that the more economical player is less at risk to injury, no matter how convenient it is to attribute it all to "luck".