Back in the day (heh, ‘back in the day’ I say… I turn 27 next week) I threw a tailing fastball that topped out around 90, but it messed up my elbow—I have no idea exactly how, it just slowly deteriorated to where pitching instantly caused severe pain—and just quit pitching. It’s something about pitching a baseball specifically, as I’ve always been able to throw a football many times over with only minimal pain, but even now, years later, I can only throw 50 pitches or so before the elbow pain returns.