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I don't know Doc.. His elbow is too high for comfort in these pictures and hes been worse in some still I've seen.
Throwing your elbow above shoulder-line is an un-natural motion, especially with stress of tossing 95mph+. I'm far from any kind of expert, but I learned that in basic P&A. It also seems like all these guys get injured and anyone that lasts long doesn't have this in their motion (either than maybe Smoltz who has had shoulder AND elbow surgery with rumors steroid-use).
My question with Pineda is.. why gamble? If you could trade Pineda+ for Jesus Montero next week, wouldn't that be a safer way of using your resources?