And for all the knocks on Tiger Woods over the last three years, saying the guy doesn't gut out rounds is not one of them. So when Tiger picked up his ball on the 11th hole, got in a cart and was driven off to his car to go home and nurse his left leg injury, you knew something was up. It had to be. This wasn't a defeated player getting off a golf course. This was Tiger, head down, mumbling under his breath about a left leg that just won't perform like it used to.
Woods is a damaged man, but this time, it's his body. Always fit, Tiger is now having to understand exactly what it means to be old.
People are going to question what exactly happened to Tiger on Sunday. Did he just quit his round after his knee started hurting? Would he have finished the round if he was in contention, a la Torrey Pines? What's next for Woods?
All of those questions are pointless now. Tiger was supposed to finally be healthy and he isn't. His leg and knee problems don't seem like they're going away anytime soon.
We all want Tiger to return to greatness, but if his body isn't in shape to do so, it will be impossible for him to be great again.
I'll be honest ... it isn't the easiest thing these days to be a Tiger fan.