So that this thread again is not derailed, I'll answer your question in this thread in relationship to Watt. Tiger has had at least 3 surgeries on his left knee. This took its toll on his golf mechanics, with expected compensatory maladjustments to his core............almost assuredly leading to his back problems. He's had 2 microdiscectomies, like JJ's. If you think of a vertebral disc as a jelly donut, you can sort of picture how a disc works. The outside dough is a solid containment wall for the jelly within the center. If you place too much pressure on the top of the jelly roll, it will create a tear somewhere around its perimeter. The jelly will then protrude through the defect placing pressure on the nerve which then in turn causing pain over the nerve's distribution. The microdiscectomy simply removes the portion of "jelly" that is bulging beyond the disc wall, and the wall is then repaired with a suture or two. It typically relieves the nerve pressure symptoms, but has nothing to do with any associate back pains or the reason the disc herniated/ruptured in the first place. In other words, it is usually a temporary partial fix for the nerve aspect. But the source of the back pain and disc herniation/rupture (vertebral anatomy, inflammation, continued stress placed on the disc) has not been addressed. Once Tiger had undergone his first disc procedure, he should have backed off of any very heavy lifting, especially overhead and dead lifts, because it would recreate the same environment for the jelly donut to be further compressed and subsequently rupture once again, as it did. As Tiger has always been somewhat of a workout warrior, he didn't follow his body's warnings.
And that brings me back to Watt, whose inability to engage in very heavy lifting will be more of a problem than to a golfer. Watt is more likely to worry about losing some of his strength than heeding his body's warning and worrying about the inevitable consequences.