The Mariners announced Monday afternoon that outfielder Guillermo Heredia had undergone successful surgery on his right shoulder to repair a Bankart lesion. He is expected to be ready for spring training in February.

A Bankart lesion typically occurs when a shoulder has been dislocated. The original injury may have happened when Heredia dove back into a base in a minor league game in early 2016. Surgery was not required at the time and Heredia finished the season without incident. In 2017 Heredia earned a spot on the big league roster and got off to a strong start hitting .274/.341/.365/.706 in the first half. His aggressive style of play both in the field and on the bases however led to a few partial dislocations otherwise know as subluxations. As the instability was in his non-throwing arm and back arm on his swing, Heredia was able to continue playing. A crash into the wall in the final two weeks of the season brought his year to a close.

Heredia was shut down September 25 while the team was in Oakland and returned to Seattle shortly after to have the shoulder examined. Surgery was recommended to restore stability to the joint and performed by Dr. John Uribe, team doctor for the Miami Dolphins and Florida Panthers, in Miami where Heredia resides in the off-season. He will begin rehabilitation immediately.

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