While part of the sports world is insanely focused on Andrew Luck's sudden retirement, I don't think anyone who follows golf would be shocked to hear Tiger announce sometime soon that he's retiring from competitive play.
As great as it must've felt winning the Masters this year, it all comes at a significant price. Even in the heart of the fiercest competitor comes the day when the physically ability to give all that it takes in remaining competitive can no longer be summoned.