David Pastrnak will miss the opening days of Bruins training camp due to tendinitis, skating but not practicing and slated for full workouts next week. His absence opens opportunities for younger players under new coach Marco Sturm as leadership remains unsettled with no captain named after Brad Marchand’s Florida trade. Pastrnak’s 106-point season underscores his value, while McAvoy and a rotating leadership group prepare for a refreshed locker room dynamic.