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TJ surgery recommended for top prospect Puk

SAN FRANCISCO -- Crushing news befell the A's on Tuesday. Their top prospect, left-hander A.J. Puk, has been recommended for Tommy John surgery.

Dr. James Andrews was consulted for a second opinion on Puk and advised ulnar collateral ligament repair surgery, which would keep Puk -- who was expected to make his big league debut this season -- out of action for more than a year.

Puk was selected by the A's as the sixth overall pick in the 2016 Draft.