Yankees pitcher Joba Chamberlain throws against the Rays. (May 16,...

Yankees pitcher Joba Chamberlain throws against the Rays. (May 16, 2011) Credit: Getty Images

Joba Chamberlain had Tommy John surgery Thursday in Pensacola, Fla. “I imagine it went well or I probably would have heard something,” Joe Girardi said. Chamberlain tweeted a picture of himself in a sling Thursday, a sign he was in good spirits.

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