White Sox injuries: Zach Putnam undergoes Tommy John surgery

When it comes to injuries, no news is usually bad news.

Take Zach Putnam for instance. He walked off the mound with a Herm Schneider escort on April 22, and while the White Sox and Putnam said it was initially day to day, it didn’t seem like it at the time, especially when factoring in Putnam’s scarred injury history.

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Putnam's early exit

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He went on the disabled list with right elbow inflammation on April 25, but after the stint lapsed and Putnam still had made no progress toward a rehab stint, it became fair to assume worse. Rick Hahn confirmed that assumption by telling the media that Putnam…