Pitching injuries are sporadic, unpredictable, and when it all comes down to it, unpreventable. You can do your due diligence to prevent them by limiting pitch counts and inning limits, etc... but that isn't a guarantee to stop an injury from occurring. Prime example: Stephen Strasburg. It's nice that Wilson's body will hold up because he's in tremendous shape, but it's his arm that's most important, and if history will tell us anything it's that arm injuries can occur regardless of how many steps you take to make sure they don't. Another good example is Jarrod Parker. When I was working for the Bay Bears a couple years ago he was on the team and I'm pretty sure they had him on a pitch count and inning limit. I want to say somewhere between 75-90 pitches and 5 or 6 innings. Pretty standard. Dude was a beast, physically, too. Incredibly fit. Blew his elbow out, got Tommy John. Physical fitness does not guarantee no injuries.