#3: He is a fighter who doesn't stop until he gets what he wants
Rafael Nadal is one of the biggest warriors tennis has ever seen. He's often been down, but he's never been out. Nadal's greatest strength isn't his forehand, it's his mental strength. A lot of times, when his game isn't working, his ability to dig in and find a loophole in his opponent's game works with immediate effect.
Del Potro and whoever he faces in the final (if he beats the Argentine) won't be pushovers. He'll have to dig deep if he is to win the title. Especially against Djokovic, who is the most adept at frustrating Nadal and finding loopholes in his game, Nadal's mental strength will be put to test.
Nadal has never previously defended a title outside clay, be it an ATP title or a Grand Slam. But, with the form he's shown, coupled with his ability to go past hurdles, Nadal will feel extremely confident. Defending a non-clay title for the first time ever will add a new feather to his cap and significance as the world number 1.
What is the foot injury that has troubled Rafael Nadal over the years? Check here