Tyler Zeller Eager To Earn Bigger Role With Celtics This Season Posted Oct 8, 2016 Based on how the 2015-16 season played out, Tyler Zeller seemed like a long shot to return to the Boston Celtics upon hitting the free agent market last summer. The 26-year-old center played in a career-low 11.8 minutes per game and saw action in just 60 of 82 games as he was regularly the odd man out in a crowded Boston frontcourt. (CBS Boston)