Golfers, media and fans alike will witness and take part in the PGA Tour's flagship event with a cloud hanging over it. Everyone knows that Tiger Woods moves the needle more than anyone in the sport.

He joined Tiger Woods in the illustrious club after McIlroy ... How close will McIlroy be to Tiger by the Tour Championship in August? If he continues to play as well as he started the season ...

Fifteen-time major champion Tiger ... for Woods, who underwent back surgery as recently as September. Here's a look at some of the injuries Woods has had throughout his PGA Tour career.