I just got done reading an article on Daisuke Matsuzaka in SI and a central theme that they focused on was the amount of work this guy actually does. He routinely throws insane amounts of innings and pitches, and has a rigorous routine on off days. He also said he has never iced his arm after games or workouts. And his arm is completely healthy. They said that MRI's the Sox took prior to signing him were as flawless as they could have been.
They also made mention of Baseball Prospectus' "Pitcher Abuse Points." Livan Hernandez has accumulated the most of them three years running, yet he's never been on the disabled list.
So, are we here stateside coddling our young pitchers too much? Or are there just some guys out there that are "freaks of nature" so to speak?