As Tiger Woods enters the third round at Augusta, seven shots back, he needs to make a Nicklaus-type come back to claim his fifth green jacket.
So why won't Woods win the Masters? He's too far back, and he has other major championship winners ahead of him, like Phil Mickelson, Mike Weir and Retief Goosen.
While there is still a lot of golf to be played, Woods has never come from behind in the final round to win any of his 13 majors. He was five shots back in 2005 heading into the weekend and came from behind to beat Chris DeMarco in a playoff.
While he did have the 54-hole lead in the 2000 PGA Championship, he spent most of the day chasing Bob May. Tiger eventually forced a playoff and won. So Woods does have the DNA to make a charge even when the outlook is bleak.
However, he's never won a major from any group other then the last group. He would need a complete collapse from the rest of the leaders in order for him to make up ground. The deeper fields and major championship winners ahead of him make that almost impossible.
The best-case scenario for Woods would be gunning for a top-three finish. With a good round on Saturday and Sunday, he has a realistic chance at that. But unless the putter gets red-hot, he's now looking at the other three majors for any victories.
Since Woods more than likely won't win, maybe he can work on his second-place finishes in which he trails the Golden Bear by a lot. Nicklaus won 18 times, but he had 19 second-place finishes, and 13 of those were by two shots or less.
So Woods has his work cut out for him.