Boston Celtics player Tyler Zeller is seen in a video screen as he prepares to do a segment during the Boston Celtics media day at their training facility in Waltham, Mass., Friday, Sept. 25, 2015. (AP Photo/Mary Schwalm)
Boston Celtics player Tyler Zeller is seen in a video screen as he prepares to do a segment during the Boston Celtics media day at their training facility in Waltham, Mass., Friday, Sept. 25, 2015. (AP Photo/Mary Schwalm)
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