Boston Celtics announced today that forward Kelly Olynyk, who battled shoulder issues all season long, underwent arthroscopic surgery yesterday. 

there is no concrete timetable for how long he will be sidelined.

Olynyk, who will be entering his fourth season with Boston next year, played in 69 games this season. He averaged just over 20 minutes played per night and scored 10 points a game. 

 

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