I was watching one of Nadal's matches a few years ago when he called for a trainer. I learned later on that that guy was a physical therapist and he and his crew took care of the players' health on court, especially when they have cramps, or problems with the heat. In that particular match, I saw the physical therapist actually massage the thighs of Rafa! In front of the cameras! The PT was really kneading Rafa's thighs!
There - I realized THAT THAT was the CAREER I should've taken! My mother did suggest that I take PT in college, but I reneged since I did not like working in hospitals. I was also worried about my career path then. Was I very wrong!!!