There is no discussion. There's just you and a700 talking past each other.
Let's recap shall we?
Your point: That a shoulder injury early in Beckett's career puts him at greater risk for shoulder-related injury and resulting useless late in his career.
A700's rebuttal: There's a number of examples of power righthanders with similar injuries early in their career who did not have significant shoulder troubles later in their career. Example, Roger Clemens, who had a shoulder injury in 1985 but didn't miss significant time because of his shoulder later in his career, and indeed went on to pitch well into his 40's.
Your response: He missed a couple starts in 1993. You are therefore wrong. As this undeniably proves my complete intellectual superiority over you I will now act like a total douche and disrupt further debate with pointless snark.
a700: How does a couple injuries in 1993 which didn't cost him any real time or imperil his future career have any bearing on my argument? Or on the discussion to this point at all?
Your response: Nyah. Nyah I say. I have already demonstrated my intellectual superiority. You continue to attempt to make points. Thus you are clearly a sore loser, so again I say, Nyah.
Dude, you really aren't covering yourself with glory here.