Greg Norman was my favorite golfer, so it's quite a treat to see him back and playing in a major, let alone contending for the win. I think he would be the oldest winner of any major by far if he somehow pulls if off.
Like Don, I think Norman could have won a good number of majors with even an average amount of luck. For several years, he was in contention in just about every major. In 1986, he led all four majors going into the final round. It seemed like someone always came up big against him in the final round (unlike the immortal Woods, where no one ever comes up big against him).
The reason I started rooting for him was because I'd read where he was such a nice, decent guy. He was also just about the only golfer I've ever seen who refused to lean on his putter when picking his ball up from the green, as a courtesy to his fellow players (so it wouldn't cause any indentation that might effect their putt). Maybe Chris Evert is inspiring him....