Baseball Prosectus的John Perrotto表示，Joba Chamberlain肩膀的问题是让洋基 这时候即使想要也不可能将他放回牛棚的原因。因为肩膀的问题让他很难很快地热身，这 不适合当後援的投手。 这也令一些人怀疑，这也是他球速时好时坏的原因。因为去年他受伤前，据看过他在 2A先发的球探表示，他先发1-7局都可以投到96miles以上。即使上了大联盟受伤前，先发 的球速也都稳定的在93-97间。 　　但他的投球机制一直被批评，包括Mitch Williams, Dan Plesac (MLB Network)和 Orel Hershizer (ESPN)都认为Joba过度使用上半身的力量，而没有好好使用腿部的力量， 迟早肩膀会出问题。 但他本人否认肩膀有问题的说法，Girardi也表示这绝不是他们将Joba放在先发的原因 。当然这也是去年继BP说，因海盗队担心Phil Coke肩膀关节唇受过伤而决定更换交易的球 员，但Phil Coke个人坚决否认自己受过这样的伤，认为这是个不实的消息後。再次有洋基 球员对BP的消息提出否认。只是不管是真是假，我们就仔细观察下去。 www.riveraveblues.com Perrotto: Joba’s shoulder preventing bullpen move anyway By Benjamin Kabak Buried in the “Rumors and Rumblings” section at the bottom of John Perrotto ’s weekend roundup column on Baseball Prospectus was an intriguing note about Joba Chamberlain. “The Yankees couldn’t move right-hander Joba Chamberlain from the rotation back to the bullpen if they wanted to at this time, because shoulder problems make it too difficult for him to warm up quickly.” Bullpen considerations aside, I have to wonder about the veracity of this rumor. If Joba had a known shoulder problem, the Yankees would not be trotting him out there every five days. They care too much about and are too focus on Joba’s future to risk his health in the short term. A shoulder problem, however, would explain the downward trend in fastball velocity Joba has been displaying since his August 2008 injury. One of the logical fallacies of the B-Jobber argument is that Joba could go from throwing 91 mile-per-hour fastballs, as he was last week in Texas, to throwing 98 out of the pen. That simply isn’t true, and right now, this rumor puts into print something many fans have been wondering about Joba. For now, it is simply a rumor, but we’ll keep our eyes on it. Frank says: June 1st, 2009 at 12:49 pm Don’t know if this is true, but if it is, it might not be a total surprise. Joba’s delivery has been critcized by Mitch Williams, Dan Plesac (MLB Network) and Orel Hershizer (ESPN) as lacking leg drive and follow through. Essentially, his landing leg is viewed as being too stiff and he seems to be throwing more with his upper body and less with his legs. This will inevitably lead to shoulder problems. www.nj.com Yankees pitcher Joba Chamberlain denies rumor that shoulder issue has kept him out of bullpen by Marc Carig/The Star-Ledger Tuesday June 02, 2009, 11:25 AM CLEVELAND -- Is Joba Chamberlain a starter only because a shoulder problem prevents the pitcher from warming up fast enough to work out of the bullpen? Not so says the pitcher and Yankees manager Joe Girardi. From John Perrotto in baseballprospectus.com (hat tip/River Ave. Blues): The Yankees couldn't move right-hander Joba Chamberlain from the rotation back to the bullpen if they wanted to at this time, because shoulder problems make it too difficult for him to warm up quickly. "Not at all," Chamberlain said after his start on Monday night. "I don't know where that came from." Girardi also denied the snippet, which was listed under the "AL Rumors and Rumblings" section of Perrotto's column on Sunday. "That's not the reason we haven't put him in the bullpen," Girardi said. "The reason we haven't put him in the bullpen is because we envision him as a starter." --

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