I'm 40 and had the same surgery as Tiger 5 years ago. It took me a full year to get my game to its level before surgery. I occasionally experience the spasms as well and then it's 6 weeks of stretching and rehab. It happens randomly. Not associated with more or less physical activity.
That being said, I don't need to perform at an elite level. So yes, he's done.
Sent from my iPhone using MyGolfSpy