Are today's pitchers simply incapable of staying healthy, or are we simply too overprotective of them when they're in the minors. Strange as it sound's, it could also be overuse, very early during their pre-teens. Another possibility is they are allowed to pitch incorrectly in grammer school and high school. Whatever the case, these young arms can't stay healthy.
In researching this story, I had to take a long, hard look at the Cubs. Hope I'm not bringing back too many unpleasent memories.
Here are some examples, with a "homer" or two thrown in for good measure.
NOTE : I am aware I spell tendinitis in two different ways. One is the medical spelling.