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10/18/2013 3:24 P.M. ET

A's RHP Sonny Gray has successful left thumb surgery

OAKLAND, Calif. - A's right-handed pitcher Sonny Gray has undergone successful surgery on his left thumb, the team announced today.

The surgery was performed Thursday by Dr. Thomas Graham at the Cleveland Clinic Hospital. The procedure was an internal fixation with a screw to repair the thumb fracture. Full stability of the thumb has been restored and Gray is expected to be fully recovered in time for spring training. 

Gray was 5-3 with a 2.67 ERA in 12 games, 10 starts, with the A's this season. Based upon a minimum of 60 innings pitched, he had the lowest opponents on-base percentage among American League rookies (.272), ranked second in opponents batting average (.214) and slugging percentage (.298) and third in ERA. He was also 0-1 with a 2.08 ERA in two ALDS starts, including a no decision October 5 where he tossed eight scoreless innings.

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