Tiger’s greatness hinges on longevity

The magic number surrounding Tiger Woods has long been 18. With 14 major championships, he is four away from Jack Nicklaus’ record, and as Woods re-enters the world of competitive golf this week, his game and left knee will be closely inspected for assurances that he can reach that level as safely as expected.
There’s another number that matters almost as much, and it shouldn’t be forgotten in the eagerness to see Woods resume his march past the Golden Bear. It’s 46, the age at which Nicklaus won his last major.